<?xml version="1.0" encoding="UTF-8"?>
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_DocumentAndEntityInformation" roleURI="http://www.calmainefoods.com/role/DocumentAndEntityInformation" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_InvestmentSecuritiesAvailableforSaleScheduleOfInvestmentSecuritiesDetails" roleURI="http://www.calmainefoods.com/role/InvestmentSecuritiesAvailableforSaleScheduleOfInvestmentSecuritiesDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_FairValueMeasurementsScheduleOfAssetsMeasuredAtFairValueOnARecurringBasisDetails" roleURI="http://www.calmainefoods.com/role/FairValueMeasurementsScheduleOfAssetsMeasuredAtFairValueOnARecurringBasisDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_SegmentReportingDisaggregationOfRevenueDetails" roleURI="http://www.calmainefoods.com/role/SegmentReportingDisaggregationOfRevenueDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_CommitmentsAndContingenciesNarrativeDetails" roleURI="http://www.calmainefoods.com/role/CommitmentsAndContingenciesNarrativeDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_EquitySummaryOfEquityActivityDetails" roleURI="http://www.calmainefoods.com/role/EquitySummaryOfEquityActivityDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_AcquisitionsNarrativeDetails" roleURI="http://www.calmainefoods.com/role/AcquisitionsNarrativeDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_AcquisitionsSummaryOfConsiderationPaidForAcquisitionAndAmountsOfAssetsAcquiredAndLiabilitiesAssumedDetails" roleURI="http://www.calmainefoods.com/role/AcquisitionsSummaryOfConsiderationPaidForAcquisitionAndAmountsOfAssetsAcquiredAndLiabilitiesAssumedDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_FairValueMeasurementsNarrativeDetails" roleURI="http://www.calmainefoods.com/role/FairValueMeasurementsNarrativeDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_FairValueMeasurementsScheduleOfBeginningAndEndingBalancesInFairValueOfTheContingentConsiderationDetails" roleURI="http://www.calmainefoods.com/role/FairValueMeasurementsScheduleOfBeginningAndEndingBalancesInFairValueOfTheContingentConsiderationDetails" xlink:type="simple"></link:roleRef>
  <link:roleRef xlink:href="calm-20260228.xsd#ELRID_SubsequentEventsNarrativeDetails" roleURI="http://www.calmainefoods.com/role/SubsequentEventsNarrativeDetails" xlink:type="simple"></link:roleRef>
  <link:arcroleRef xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member" xlink:type="simple" arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member"></link:arcroleRef>
  <link:arcroleRef xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all" xlink:type="simple" arcroleURI="http://xbrl.org/int/dim/arcrole/all"></link:arcroleRef>
  <link:arcroleRef xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension" xlink:type="simple" arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension"></link:arcroleRef>
  <link:arcroleRef xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain" xlink:type="simple" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain"></link:arcroleRef>
  <link:arcroleRef xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default" xlink:type="simple" arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default"></link:arcroleRef>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/DocumentAndEntityInformation">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_0" xlink:to="loc_us-gaap_CommonStockMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_0" xlink:to="loc_us-gaap_CommonClassAMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementTable" xlink:label="loc_us-gaap_StatementTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_us-gaap_StatementTable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_StatementTable_0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_0" xlink:to="loc_us-gaap_ClassOfStockDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentType" xlink:label="loc_dei_DocumentType_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentType_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentAnnualReport" xlink:label="loc_dei_DocumentAnnualReport_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentAnnualReport_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentQuarterlyReport" xlink:label="loc_dei_DocumentQuarterlyReport_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentQuarterlyReport_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentPeriodEndDate" xlink:label="loc_dei_DocumentPeriodEndDate_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentPeriodEndDate_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentTransitionReport" xlink:label="loc_dei_DocumentTransitionReport_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentTransitionReport_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFileNumber" xlink:label="loc_dei_EntityFileNumber_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityFileNumber_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityRegistrantName" xlink:label="loc_dei_EntityRegistrantName_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityRegistrantName_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityIncorporationStateCountryCode" xlink:label="loc_dei_EntityIncorporationStateCountryCode_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityIncorporationStateCountryCode_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityTaxIdentificationNumber" xlink:label="loc_dei_EntityTaxIdentificationNumber_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="9.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityTaxIdentificationNumber_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine1" xlink:label="loc_dei_EntityAddressAddressLine1_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="10.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityAddressAddressLine1_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressAddressLine2" xlink:label="loc_dei_EntityAddressAddressLine2_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="11.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityAddressAddressLine2_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressCityOrTown" xlink:label="loc_dei_EntityAddressCityOrTown_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="12.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityAddressCityOrTown_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressStateOrProvince" xlink:label="loc_dei_EntityAddressStateOrProvince_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="13.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityAddressStateOrProvince_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityAddressPostalZipCode" xlink:label="loc_dei_EntityAddressPostalZipCode_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="14.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityAddressPostalZipCode_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CityAreaCode" xlink:label="loc_dei_CityAreaCode_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="15.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_CityAreaCode_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LocalPhoneNumber" xlink:label="loc_dei_LocalPhoneNumber_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="16.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_LocalPhoneNumber_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_Security12bTitle" xlink:label="loc_dei_Security12bTitle_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="17.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_Security12bTitle_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_TradingSymbol" xlink:label="loc_dei_TradingSymbol_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="18.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_TradingSymbol_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_SecurityExchangeName" xlink:label="loc_dei_SecurityExchangeName_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="19.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_SecurityExchangeName_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityWellKnownSeasonedIssuer" xlink:label="loc_dei_EntityWellKnownSeasonedIssuer_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="20.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityWellKnownSeasonedIssuer_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityVoluntaryFilers" xlink:label="loc_dei_EntityVoluntaryFilers_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="21.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityVoluntaryFilers_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCurrentReportingStatus" xlink:label="loc_dei_EntityCurrentReportingStatus_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="22.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityCurrentReportingStatus_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityInteractiveDataCurrent" xlink:label="loc_dei_EntityInteractiveDataCurrent_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="23.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityInteractiveDataCurrent_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityFilerCategory" xlink:label="loc_dei_EntityFilerCategory_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="24.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityFilerCategory_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntitySmallBusiness" xlink:label="loc_dei_EntitySmallBusiness_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="25.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntitySmallBusiness_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityEmergingGrowthCompany" xlink:label="loc_dei_EntityEmergingGrowthCompany_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="26.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityEmergingGrowthCompany_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFinStmtErrorCorrectionFlag" xlink:label="loc_dei_DocumentFinStmtErrorCorrectionFlag_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="27.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentFinStmtErrorCorrectionFlag_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_IcfrAuditorAttestationFlag" xlink:label="loc_dei_IcfrAuditorAttestationFlag_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="28.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_IcfrAuditorAttestationFlag_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityShellCompany" xlink:label="loc_dei_EntityShellCompany_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="29.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityShellCompany_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityPublicFloat" xlink:label="loc_dei_EntityPublicFloat_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="30.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityPublicFloat_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCommonStockSharesOutstanding" xlink:label="loc_dei_EntityCommonStockSharesOutstanding_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="31.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityCommonStockSharesOutstanding_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentsIncorporatedByReferenceTextBlock" xlink:label="loc_dei_DocumentsIncorporatedByReferenceTextBlock_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="32.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentsIncorporatedByReferenceTextBlock_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_CurrentFiscalYearEndDate" xlink:label="loc_dei_CurrentFiscalYearEndDate_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="33.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_CurrentFiscalYearEndDate_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AmendmentFlag" xlink:label="loc_dei_AmendmentFlag_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="34.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_AmendmentFlag_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalYearFocus" xlink:label="loc_dei_DocumentFiscalYearFocus_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="35.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentFiscalYearFocus_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_DocumentFiscalPeriodFocus" xlink:label="loc_dei_DocumentFiscalPeriodFocus_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="36.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_DocumentFiscalPeriodFocus_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityCentralIndexKey" xlink:label="loc_dei_EntityCentralIndexKey_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="37.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_EntityCentralIndexKey_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorName" xlink:label="loc_dei_AuditorName_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="38.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_AuditorName_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorFirmId" xlink:label="loc_dei_AuditorFirmId_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="39.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_AuditorFirmId_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_AuditorLocation" xlink:label="loc_dei_AuditorLocation_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="40.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_0" xlink:to="loc_dei_AuditorLocation_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/InvestmentSecuritiesAvailableforSaleScheduleOfInvestmentSecuritiesDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MunicipalBondsMember" xlink:label="loc_us-gaap_MunicipalBondsMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_MunicipalBondsMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommercialPaperMember" xlink:label="loc_us-gaap_CommercialPaperMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_CommercialPaperMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_CertificatesOfDepositMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USGovernmentAgenciesShorttermDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentAgenciesShorttermDebtSecuritiesMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_USGovernmentAgenciesShorttermDebtSecuritiesMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetBackedSecuritiesMember" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USTreasuryBillSecuritiesMember" xlink:label="loc_us-gaap_USTreasuryBillSecuritiesMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_USTreasuryBillSecuritiesMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MutualFundMember" xlink:label="loc_us-gaap_MutualFundMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0" xlink:to="loc_us-gaap_MutualFundMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems" xlink:label="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DebtSecuritiesAvailableForSaleTable" xlink:label="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FinancialInstrumentAxis" xlink:label="loc_us-gaap_FinancialInstrumentAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DebtSecuritiesAvailableForSaleTable_0" xlink:to="loc_us-gaap_FinancialInstrumentAxis_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FinancialInstrumentAxis_0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain" xlink:label="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FinancialInstrumentAxis_0" xlink:to="loc_us-gaap_TransfersAndServicingOfFinancialInstrumentsTypesOfFinancialInstrumentsDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_AvailableForSaleDebtSecuritiesCurrentAmortizedCostBasis" xlink:label="loc_calm_AvailableForSaleDebtSecuritiesCurrentAmortizedCostBasis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_calm_AvailableForSaleDebtSecuritiesCurrentAmortizedCostBasis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_AvailableForSaleDebtSecuritiesCurrentAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_calm_AvailableForSaleDebtSecuritiesCurrentAccumulatedGrossUnrealizedGainBeforeTax_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_calm_AvailableForSaleDebtSecuritiesCurrentAccumulatedGrossUnrealizedGainBeforeTax_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_AvailableForSaleDebtSecuritiesCurrentAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_calm_AvailableForSaleDebtSecuritiesCurrentAccumulatedGrossUnrealizedLossBeforeTax_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_calm_AvailableForSaleDebtSecuritiesCurrentAccumulatedGrossUnrealizedLossBeforeTax_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesCurrent_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_AvailableForSaleDebtSecuritiesNoncurrentAmortizedCostBasis" xlink:label="loc_calm_AvailableForSaleDebtSecuritiesNoncurrentAmortizedCostBasis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_calm_AvailableForSaleDebtSecuritiesNoncurrentAmortizedCostBasis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_AvailableForSaleDebtSecuritiesNoncurrentAccumulatedGrossUnrealizedGainBeforeTax" xlink:label="loc_calm_AvailableForSaleDebtSecuritiesNoncurrentAccumulatedGrossUnrealizedGainBeforeTax_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_calm_AvailableForSaleDebtSecuritiesNoncurrentAccumulatedGrossUnrealizedGainBeforeTax_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_AvailableForSaleDebtSecuritiesNoncurrentAccumulatedGrossUnrealizedLossBeforeTax" xlink:label="loc_calm_AvailableForSaleDebtSecuritiesNoncurrentAccumulatedGrossUnrealizedLossBeforeTax_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_calm_AvailableForSaleDebtSecuritiesNoncurrentAccumulatedGrossUnrealizedLossBeforeTax_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent" xlink:label="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems_0" xlink:to="loc_us-gaap_AvailableForSaleSecuritiesDebtSecuritiesNoncurrent_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/FairValueMeasurementsScheduleOfAssetsMeasuredAtFairValueOnARecurringBasisDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel1Member" xlink:label="loc_us-gaap_FairValueInputsLevel1Member_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" xlink:to="loc_us-gaap_FairValueInputsLevel1Member_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel2Member" xlink:label="loc_us-gaap_FairValueInputsLevel2Member_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" xlink:to="loc_us-gaap_FairValueInputsLevel2Member_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MunicipalBondsMember" xlink:label="loc_us-gaap_MunicipalBondsMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_MunicipalBondsMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommercialPaperMember" xlink:label="loc_us-gaap_CommercialPaperMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_CommercialPaperMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CorporateDebtSecuritiesMember" xlink:label="loc_us-gaap_CorporateDebtSecuritiesMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_CorporateDebtSecuritiesMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CertificatesOfDepositMember" xlink:label="loc_us-gaap_CertificatesOfDepositMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_CertificatesOfDepositMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USGovernmentAgenciesShorttermDebtSecuritiesMember" xlink:label="loc_us-gaap_USGovernmentAgenciesShorttermDebtSecuritiesMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_USGovernmentAgenciesShorttermDebtSecuritiesMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetBackedSecuritiesMember" xlink:label="loc_us-gaap_AssetBackedSecuritiesMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_AssetBackedSecuritiesMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_USTreasuryBillSecuritiesMember" xlink:label="loc_us-gaap_USTreasuryBillSecuritiesMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_USTreasuryBillSecuritiesMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MutualFundMember" xlink:label="loc_us-gaap_MutualFundMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_InvestmentTypeCategorizationMember_0" xlink:to="loc_us-gaap_MutualFundMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueDisclosure" xlink:label="loc_us-gaap_AssetsFairValueDisclosure_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0" xlink:to="loc_us-gaap_AssetsFairValueDisclosure_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LiabilitiesFairValueDisclosure" xlink:label="loc_us-gaap_LiabilitiesFairValueDisclosure_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0" xlink:to="loc_us-gaap_LiabilitiesFairValueDisclosure_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_0" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentTypeAxis" xlink:label="loc_us-gaap_InvestmentTypeAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0" xlink:to="loc_us-gaap_InvestmentTypeAxis_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_InvestmentTypeAxis_0" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="loc_us-gaap_InvestmentTypeCategorizationMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_InvestmentTypeAxis_0" xlink:to="loc_us-gaap_InvestmentTypeCategorizationMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_0" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_0" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_0" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_0" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_ContingentconsiderationMember" xlink:label="loc_calm_ContingentconsiderationMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_0" xlink:to="loc_calm_ContingentconsiderationMember_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/SegmentReportingDisaggregationOfRevenueDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_NonSpecialtyShellEggSalesMember" xlink:label="loc_calm_NonSpecialtyShellEggSalesMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_calm_NonSpecialtyShellEggSalesMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_SpecialtyShellEggSalesMember" xlink:label="loc_calm_SpecialtyShellEggSalesMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_calm_SpecialtyShellEggSalesMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_PreparedFoodsMember" xlink:label="loc_calm_PreparedFoodsMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_calm_PreparedFoodsMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_EggProductsMember" xlink:label="loc_calm_EggProductsMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_calm_EggProductsMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_OtherMember" xlink:label="loc_calm_OtherMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_calm_OtherMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetailMember" xlink:label="loc_us-gaap_RetailMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_us-gaap_RetailMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FoodAndBeverageMember" xlink:label="loc_us-gaap_FoodAndBeverageMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_us-gaap_FoodAndBeverageMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ServiceOtherMember" xlink:label="loc_us-gaap_ServiceOtherMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_ProductsAndServicesDomain_0" xlink:to="loc_us-gaap_ServiceOtherMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_ProductAndSalesChannelSegmentMember" xlink:label="loc_calm_ProductAndSalesChannelSegmentMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SegmentDomain_0" xlink:to="loc_calm_ProductAndSalesChannelSegmentMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueLineItems" xlink:label="loc_us-gaap_DisaggregationOfRevenueLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_DisaggregationOfRevenueTable" xlink:label="loc_us-gaap_DisaggregationOfRevenueTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_0" xlink:to="loc_us-gaap_DisaggregationOfRevenueTable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductOrServiceAxis" xlink:label="loc_srt_ProductOrServiceAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_0" xlink:to="loc_srt_ProductOrServiceAxis_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_ProductOrServiceAxis_0" xlink:to="loc_srt_ProductsAndServicesDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_ProductsAndServicesDomain" xlink:label="loc_srt_ProductsAndServicesDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_ProductOrServiceAxis_0" xlink:to="loc_srt_ProductsAndServicesDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementBusinessSegmentsAxis" xlink:label="loc_us-gaap_StatementBusinessSegmentsAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_DisaggregationOfRevenueTable_0" xlink:to="loc_us-gaap_StatementBusinessSegmentsAxis_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0" xlink:to="loc_us-gaap_SegmentDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SegmentDomain" xlink:label="loc_us-gaap_SegmentDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementBusinessSegmentsAxis_0" xlink:to="loc_us-gaap_SegmentDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Revenues" xlink:label="loc_us-gaap_Revenues_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_DisaggregationOfRevenueLineItems_0" xlink:to="loc_us-gaap_Revenues_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/CommitmentsAndContingenciesNarrativeDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingenciesLineItems" xlink:label="loc_us-gaap_LossContingenciesLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingenciesTable" xlink:label="loc_us-gaap_LossContingenciesTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_LossContingenciesTable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LitigationStatusAxis" xlink:label="loc_us-gaap_LitigationStatusAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0" xlink:to="loc_us-gaap_LitigationStatusAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LitigationStatusDomain" xlink:label="loc_us-gaap_LitigationStatusDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LitigationStatusAxis_0" xlink:to="loc_us-gaap_LitigationStatusDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LitigationStatusDomain" xlink:label="loc_us-gaap_LitigationStatusDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LitigationStatusAxis_0" xlink:to="loc_us-gaap_LitigationStatusDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PendingLitigationMember" xlink:label="loc_us-gaap_PendingLitigationMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_0" xlink:to="loc_us-gaap_PendingLitigationMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_JudicialRulingMember" xlink:label="loc_us-gaap_JudicialRulingMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LitigationStatusDomain_0" xlink:to="loc_us-gaap_JudicialRulingMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_LitigationCaseAxis" xlink:label="loc_srt_LitigationCaseAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0" xlink:to="loc_srt_LitigationCaseAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_LitigationCaseTypeDomain" xlink:label="loc_srt_LitigationCaseTypeDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_LitigationCaseAxis_0" xlink:to="loc_srt_LitigationCaseTypeDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_LitigationCaseTypeDomain" xlink:label="loc_srt_LitigationCaseTypeDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_LitigationCaseAxis_0" xlink:to="loc_srt_LitigationCaseTypeDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_StateOfTexasVCalMaineFoodsIncDbaWhartonAndWhartonCountyFoodsLLCMember" xlink:label="loc_calm_StateOfTexasVCalMaineFoodsIncDbaWhartonAndWhartonCountyFoodsLLCMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_0" xlink:to="loc_calm_StateOfTexasVCalMaineFoodsIncDbaWhartonAndWhartonCountyFoodsLLCMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_KraftFoodsGlobalIncEtAlVUnitedEggProducersIncEtAlMember" xlink:label="loc_calm_KraftFoodsGlobalIncEtAlVUnitedEggProducersIncEtAlMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_0" xlink:to="loc_calm_KraftFoodsGlobalIncEtAlVUnitedEggProducersIncEtAlMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_StateOfOklahomaVCalMaineFoodsIncDbaWatershedPollutionLitigationMemberMember" xlink:label="loc_calm_StateOfOklahomaVCalMaineFoodsIncDbaWatershedPollutionLitigationMemberMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_0" xlink:to="loc_calm_StateOfOklahomaVCalMaineFoodsIncDbaWatershedPollutionLitigationMemberMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_InReShellEggsLitigationMember" xlink:label="loc_calm_InReShellEggsLitigationMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_LitigationCaseTypeDomain_0" xlink:to="loc_calm_InReShellEggsLitigationMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipAxis" xlink:label="loc_srt_OwnershipAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0" xlink:to="loc_srt_OwnershipAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain" xlink:label="loc_srt_OwnershipDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_srt_OwnershipAxis_0" xlink:to="loc_srt_OwnershipDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2024/elts/srt-2024.xsd#srt_OwnershipDomain" xlink:label="loc_srt_OwnershipDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_srt_OwnershipAxis_0" xlink:to="loc_srt_OwnershipDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_BentonCountyFoodsMember" xlink:label="loc_calm_BentonCountyFoodsMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_srt_OwnershipDomain_0" xlink:to="loc_calm_BentonCountyFoodsMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingenciesByNatureOfContingencyAxis" xlink:label="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0" xlink:to="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_0" xlink:to="loc_us-gaap_LossContingencyNatureDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNatureDomain" xlink:label="loc_us-gaap_LossContingencyNatureDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_LossContingenciesByNatureOfContingencyAxis_0" xlink:to="loc_us-gaap_LossContingencyNatureDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SuretyBondMember" xlink:label="loc_us-gaap_SuretyBondMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingencyNatureDomain_0" xlink:to="loc_us-gaap_SuretyBondMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_0" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_0" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_0" xlink:to="loc_us-gaap_SubsequentEventMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_LegalEntityAxis" xlink:label="loc_dei_LegalEntityAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_LossContingenciesTable_0" xlink:to="loc_dei_LegalEntityAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_dei_LegalEntityAxis_0" xlink:to="loc_dei_EntityDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2024/dei-2024.xsd#dei_EntityDomain" xlink:label="loc_dei_EntityDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_dei_LegalEntityAxis_0" xlink:to="loc_dei_EntityDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_EntitiesIncludedInStateOfOklahomaWatershedPollutionLitigationMember" xlink:label="loc_calm_EntitiesIncludedInStateOfOklahomaWatershedPollutionLitigationMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain_0" xlink:to="loc_calm_EntitiesIncludedInStateOfOklahomaWatershedPollutionLitigationMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyDamagesSoughtValue" xlink:label="loc_us-gaap_LossContingencyDamagesSoughtValue_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_LossContingencyDamagesSoughtValue_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestOwnershipPercentageByParent" xlink:label="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_MinorityInterestOwnershipPercentageByParent_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LitigationSettlementAmountAwardedToOtherParty" xlink:label="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_LitigationSettlementAmountAwardedToOtherParty_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_LitigationSettlementTrebleDamages" xlink:label="loc_calm_LitigationSettlementTrebleDamages_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_LitigationSettlementTrebleDamages_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyAccrualProvision" xlink:label="loc_us-gaap_LossContingencyAccrualProvision_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_LossContingencyAccrualProvision_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SpecialAssessmentBondCurrent" xlink:label="loc_us-gaap_SpecialAssessmentBondCurrent_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_SpecialAssessmentBondCurrent_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_LossContingencyNewClaimsFiledNumber" xlink:label="loc_us-gaap_LossContingencyNewClaimsFiledNumber_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_us-gaap_LossContingencyNewClaimsFiledNumber_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_NumbersOfDozenOfEggsQuantityToBeDonatedInTheTermsOfLitigationSettlement" xlink:label="loc_calm_NumbersOfDozenOfEggsQuantityToBeDonatedInTheTermsOfLitigationSettlement_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_NumbersOfDozenOfEggsQuantityToBeDonatedInTheTermsOfLitigationSettlement_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_LossContingencyRemediationFund" xlink:label="loc_calm_LossContingencyRemediationFund_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="9.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_LossContingencyRemediationFund_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_LossContingencyRemediationFundPeriodToFundInitialBalance" xlink:label="loc_calm_LossContingencyRemediationFundPeriodToFundInitialBalance_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="10.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_LossContingencyRemediationFundPeriodToFundInitialBalance_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_LossContingencyRemediationFundAdditionAmountWhenFundIsBelowThreshold" xlink:label="loc_calm_LossContingencyRemediationFundAdditionAmountWhenFundIsBelowThreshold_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="11.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_LossContingencyRemediationFundAdditionAmountWhenFundIsBelowThreshold_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_LossContingencyRemediationFundThresholdWhichRequiredAdditionalFunding" xlink:label="loc_calm_LossContingencyRemediationFundThresholdWhichRequiredAdditionalFunding_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="12.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_LossContingencyRemediationFundThresholdWhichRequiredAdditionalFunding_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_LossContingencyRemediationFundPeriodToFund" xlink:label="loc_calm_LossContingencyRemediationFundPeriodToFund_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="13.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_LossContingenciesLineItems_0" xlink:to="loc_calm_LossContingencyRemediationFundPeriodToFund_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/EquitySummaryOfEquityActivityDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockMember" xlink:label="loc_us-gaap_CommonStockMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_1" xlink:to="loc_us-gaap_CommonStockMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonClassAMember" xlink:label="loc_us-gaap_CommonClassAMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_ClassOfStockDomain_1" xlink:to="loc_us-gaap_CommonClassAMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementClassOfStockAxis" xlink:label="loc_us-gaap_StatementClassOfStockAxis_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementClassOfStockAxis_1" xlink:to="loc_us-gaap_ClassOfStockDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ClassOfStockDomain" xlink:label="loc_us-gaap_ClassOfStockDomain_2"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementClassOfStockAxis_1" xlink:to="loc_us-gaap_ClassOfStockDomain_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementLineItems" xlink:label="loc_us-gaap_StatementLineItems_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_EquityTable" xlink:label="loc_calm_EquityTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_calm_EquityTable_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_calm_EquityTable_0" xlink:to="loc_us-gaap_StatementClassOfStockAxis_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StatementEquityComponentsAxis" xlink:label="loc_us-gaap_StatementEquityComponentsAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_calm_EquityTable_0" xlink:to="loc_us-gaap_StatementEquityComponentsAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_0" xlink:to="loc_us-gaap_EquityComponentDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_EquityComponentDomain" xlink:label="loc_us-gaap_EquityComponentDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_StatementEquityComponentsAxis_0" xlink:to="loc_us-gaap_EquityComponentDomain_1"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0" xlink:to="loc_us-gaap_CommonStockMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockCommonMember" xlink:label="loc_us-gaap_TreasuryStockCommonMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0" xlink:to="loc_us-gaap_TreasuryStockCommonMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AdditionalPaidInCapitalMember" xlink:label="loc_us-gaap_AdditionalPaidInCapitalMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0" xlink:to="loc_us-gaap_AdditionalPaidInCapitalMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeMember" xlink:label="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0" xlink:to="loc_us-gaap_AccumulatedOtherComprehensiveIncomeMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_RetainedEarningsMember" xlink:label="loc_us-gaap_RetainedEarningsMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0" xlink:to="loc_us-gaap_RetainedEarningsMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestMember" xlink:label="loc_us-gaap_NoncontrollingInterestMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_EquityComponentDomain_0" xlink:to="loc_us-gaap_NoncontrollingInterestMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest" xlink:label="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_OtherComprehensiveIncomeLossNetOfTax" xlink:label="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_OtherComprehensiveIncomeLossNetOfTax_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_StockCompensationPlanTransactions" xlink:label="loc_calm_StockCompensationPlanTransactions_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_calm_StockCompensationPlanTransactions_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_StockCompensationPlanTransactionsShares" xlink:label="loc_calm_StockCompensationPlanTransactionsShares_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_calm_StockCompensationPlanTransactionsShares_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination" xlink:label="loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_NoncontrollingInterestIncreaseFromBusinessCombination_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_TreasuryStockValueAcquiredCostMethod" xlink:label="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_TreasuryStockValueAcquiredCostMethod_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance" xlink:label="loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_NoncontrollingInterestIncreaseFromSubsidiaryEquityIssuance_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_MinorityInterestPeriodIncreaseDecrease" xlink:label="loc_us-gaap_MinorityInterestPeriodIncreaseDecrease_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_MinorityInterestPeriodIncreaseDecrease_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Dividends" xlink:label="loc_us-gaap_Dividends_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="9.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_Dividends_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ProfitLoss" xlink:label="loc_us-gaap_ProfitLoss_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="10.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_ProfitLoss_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_CommonStockDividendsPerShareCashPaid" xlink:label="loc_us-gaap_CommonStockDividendsPerShareCashPaid_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="12.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_StatementLineItems_1" xlink:to="loc_us-gaap_CommonStockDividendsPerShareCashPaid_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/AcquisitionsNarrativeDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1" xlink:label="loc_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_GoodwillAcquiredDuringPeriod" xlink:label="loc_us-gaap_GoodwillAcquiredDuringPeriod_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_us-gaap_GoodwillAcquiredDuringPeriod_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationAcquisitionRelatedCosts" xlink:label="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_us-gaap_BusinessCombinationAcquisitionRelatedCosts_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_BusinessCombinationNumberOfLayersAndPulletsAcquired" xlink:label="loc_calm_BusinessCombinationNumberOfLayersAndPulletsAcquired_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_calm_BusinessCombinationNumberOfLayersAndPulletsAcquired_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionAxis" xlink:label="loc_us-gaap_AssetAcquisitionAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0" xlink:to="loc_us-gaap_AssetAcquisitionAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionDomain" xlink:label="loc_us-gaap_AssetAcquisitionDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_0" xlink:to="loc_us-gaap_AssetAcquisitionDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionDomain" xlink:label="loc_us-gaap_AssetAcquisitionDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_AssetAcquisitionAxis_0" xlink:to="loc_us-gaap_AssetAcquisitionDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_0" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_0" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_0" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_CleanEggLlcMember" xlink:label="loc_calm_CleanEggLlcMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0" xlink:to="loc_calm_CleanEggLlcMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_EchoLakeFoodsIncMember" xlink:label="loc_calm_EchoLakeFoodsIncMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_0" xlink:to="loc_calm_EchoLakeFoodsIncMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_0" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/AcquisitionsSummaryOfConsiderationPaidForAcquisitionAndAmountsOfAssetsAcquiredAndLiabilitiesAssumedDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionLineItems" xlink:label="loc_us-gaap_BusinessAcquisitionLineItems_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable" xlink:label="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_ScheduleOfBusinessAcquisitionsByAcquisitionTable_1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_1" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_EchoLakeFoodsIncMember" xlink:label="loc_calm_EchoLakeFoodsIncMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_2" xlink:to="loc_calm_EchoLakeFoodsIncMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_PaymentsToAcquireBusinessesGross" xlink:label="loc_us-gaap_PaymentsToAcquireBusinessesGross_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_PaymentsToAcquireBusinessesGross_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCashAndEquivalents_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsMarketableSecurities_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsReceivables_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="7.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="8.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="9.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="10.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccountsPayable_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="11.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_Goodwill" xlink:label="loc_us-gaap_Goodwill_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="12.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_Goodwill_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet" xlink:label="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="13.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionLineItems_1" xlink:to="loc_us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/FairValueMeasurementsNarrativeDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_2"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_2" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_FassioEggFarmsIncMember" xlink:label="loc_calm_FassioEggFarmsIncMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_3" xlink:to="loc_calm_FassioEggFarmsIncMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable" xlink:label="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1" xlink:to="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisTable_1" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_BusinessCombinationContingentConsiderationMeasurementPeriod" xlink:label="loc_calm_BusinessCombinationContingentConsiderationMeasurementPeriod_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1" xlink:to="loc_calm_BusinessCombinationContingentConsiderationMeasurementPeriod_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetsFairValueAdjustment" xlink:label="loc_us-gaap_AssetsFairValueAdjustment_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueAssetsAndLiabilitiesMeasuredOnRecurringAndNonrecurringBasisLineItems_1" xlink:to="loc_us-gaap_AssetsFairValueAdjustment_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/FairValueMeasurementsScheduleOfBeginningAndEndingBalancesInFairValueOfTheContingentConsiderationDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:label="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueInputsLevel3Member" xlink:label="loc_us-gaap_FairValueInputsLevel3Member_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2" xlink:to="loc_us-gaap_FairValueInputsLevel3Member_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionAxis" xlink:label="loc_us-gaap_AssetAcquisitionAxis_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionDomain" xlink:label="loc_us-gaap_AssetAcquisitionDomain_2"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_AssetAcquisitionAxis_1" xlink:to="loc_us-gaap_AssetAcquisitionDomain_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_FassioEggFarmsIncMember" xlink:label="loc_calm_FassioEggFarmsIncMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_AssetAcquisitionDomain_2" xlink:to="loc_calm_FassioEggFarmsIncMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:label="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1" xlink:to="loc_us-gaap_FairValueMeasurementsFairValueHierarchyDomain_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueByLiabilityClassAxis" xlink:label="loc_us-gaap_FairValueByLiabilityClassAxis_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain" xlink:label="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_2"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_FairValueByLiabilityClassAxis_1" xlink:to="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_ContingentconsiderationMember" xlink:label="loc_calm_ContingentconsiderationMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationByLiabilityClassDomain_2" xlink:to="loc_calm_ContingentconsiderationMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AssetAcquisitionTable" xlink:label="loc_us-gaap_AssetAcquisitionTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_0" xlink:to="loc_us-gaap_AssetAcquisitionTable_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_0" xlink:to="loc_us-gaap_AssetAcquisitionAxis_1"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_0" xlink:to="loc_us-gaap_FairValueByFairValueHierarchyLevelAxis_1"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_AssetAcquisitionTable_0" xlink:to="loc_us-gaap_FairValueByLiabilityClassAxis_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_0" xlink:to="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisWithUnobservableInputs_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements" xlink:label="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputReconciliationLineItems_0" xlink:to="loc_us-gaap_FairValueNetDerivativeAssetLiabilityMeasuredOnRecurringBasisUnobservableInputsReconciliationSettlements_0"></link:definitionArc>
  </link:definitionLink>
  <link:definitionLink xlink:type="extended" xlink:role="http://www.calmainefoods.com/role/SubsequentEventsNarrativeDetails">
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAxis" xlink:label="loc_us-gaap_BusinessAcquisitionAxis_3"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionAcquireeDomain" xlink:label="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_BusinessAcquisitionAxis_3" xlink:to="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_CreightonBrothersLlcCrystalLakeLlcMember" xlink:label="loc_calm_CreightonBrothersLlcCrystalLakeLlcMember_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_BusinessAcquisitionAcquireeDomain_4" xlink:to="loc_calm_CreightonBrothersLlcCrystalLakeLlcMember_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeAxis" xlink:label="loc_us-gaap_SubsequentEventTypeAxis_1"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTypeDomain" xlink:label="loc_us-gaap_SubsequentEventTypeDomain_2"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="loc_us-gaap_SubsequentEventTypeAxis_1" xlink:to="loc_us-gaap_SubsequentEventTypeDomain_2"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventMember" xlink:label="loc_us-gaap_SubsequentEventMember_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventTypeDomain_2" xlink:to="loc_us-gaap_SubsequentEventMember_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventLineItems" xlink:label="loc_us-gaap_SubsequentEventLineItems_0"></link:loc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_SubsequentEventTable" xlink:label="loc_us-gaap_SubsequentEventTable_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="-1.0" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_SubsequentEventTable_0"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_0" xlink:to="loc_us-gaap_SubsequentEventTypeAxis_1"></link:definitionArc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="loc_us-gaap_SubsequentEventTable_0" xlink:to="loc_us-gaap_BusinessAcquisitionAxis_3"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessCombinationConsiderationTransferred1" xlink:label="loc_us-gaap_BusinessCombinationConsiderationTransferred1_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="1.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_BusinessCombinationConsiderationTransferred1_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1" xlink:label="loc_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_1"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="2.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_BusinessAcquisitionEffectiveDateOfAcquisition1_1"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_BusinessCombinationNumberOfLayersAcquired" xlink:label="loc_calm_BusinessCombinationNumberOfLayersAcquired_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="3.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_calm_BusinessCombinationNumberOfLayersAcquired_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_BusinessCombinationNumberOfCageFreeLayersAcquired" xlink:label="loc_calm_BusinessCombinationNumberOfCageFreeLayersAcquired_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="4.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_calm_BusinessCombinationNumberOfCageFreeLayersAcquired_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="calm-20260228.xsd#calm_BusinessCombinationNumberOfPulletsAcquired" xlink:label="loc_calm_BusinessCombinationNumberOfPulletsAcquired_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="5.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_calm_BusinessCombinationNumberOfPulletsAcquired_0"></link:definitionArc>
    <link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2024/elts/us-gaap-2024.xsd#us-gaap_AreaOfLand" xlink:label="loc_us-gaap_AreaOfLand_0"></link:loc>
    <link:definitionArc xlink:type="arc" priority="0" order="6.0" use="optional" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_us-gaap_SubsequentEventLineItems_0" xlink:to="loc_us-gaap_AreaOfLand_0"></link:definitionArc>
  </link:definitionLink>
</link:linkbase>
