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| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_MackCaliRealtyLpMember" xlink:label="cli_MackCaliRealtyLpMember"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="dei_EntityDomain" xlink:to="cli_MackCaliRealtyLpMember" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_StockoldersEquityLineItems" xlink:label="cli_StockoldersEquityLineItems"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="cli_StockoldersEquityLineItems" xlink:to="cli_StockoldersEquityTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="cli_StockoldersEquityLineItems" xlink:to="us-gaap_StockholdersEquityNoteDisclosureTextBlock" priority="1" use="optional"> </definitionArc> |
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| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="us-gaap_MinorityInterestTable" xlink:to="dei_LegalEntityAxis" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="dei_LegalEntityAxis" xlink:to="dei_EntityDomain" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_MackCaliRealtyLpMember" xlink:label="cli_MackCaliRealtyLpMember"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="dei_EntityDomain" xlink:to="cli_MackCaliRealtyLpMember" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MinorityInterestLineItems" xlink:label="us-gaap_MinorityInterestLineItems"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_MinorityInterestLineItems" xlink:to="us-gaap_MinorityInterestTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_MinorityInterestDisclosureTextBlock" xlink:label="us-gaap_MinorityInterestDisclosureTextBlock"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_MinorityInterestLineItems" xlink:to="us-gaap_MinorityInterestDisclosureTextBlock" priority="1" use="optional"> </definitionArc> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.mack-cali.com/role/DisclosureSegmentReporting" xlink:type="extended" xlink:title="11801 - Disclosure - Segment Reporting"> |
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| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="cli_SegmentReportingInformationTable" xlink:to="dei_LegalEntityAxis" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="dei_LegalEntityAxis" xlink:to="dei_EntityDomain" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_MackCaliRealtyLpMember" xlink:label="cli_MackCaliRealtyLpMember"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="dei_EntityDomain" xlink:to="cli_MackCaliRealtyLpMember" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingInformationLineItems" xlink:label="us-gaap_SegmentReportingInformationLineItems"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="us-gaap_SegmentReportingInformationLineItems" xlink:to="cli_SegmentReportingInformationTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_SegmentReportingDisclosureTextBlock" xlink:label="us-gaap_SegmentReportingDisclosureTextBlock"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="us-gaap_SegmentReportingInformationLineItems" xlink:to="us-gaap_SegmentReportingDisclosureTextBlock" priority="1" use="optional"> </definitionArc> |
| | </definitionLink> |
| <definitionLink xlink:role="http://www.mack-cali.com/role/DisclosureSignificantAccountingPoliciesPolicy" xlink:type="extended" xlink:title="20202 - Disclosure - Significant Accounting Policies (Policy)"> |
| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_SignificantAccountingPoliciesTable" xlink:label="cli_SignificantAccountingPoliciesTable"> </loc> |
| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" order="1" xlink:from="cli_SignificantAccountingPoliciesTable" xlink:to="dei_LegalEntityAxis" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" order="1" xlink:from="dei_LegalEntityAxis" xlink:to="dei_EntityDomain" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_MackCaliRealtyLpMember" xlink:label="cli_MackCaliRealtyLpMember"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="1" xlink:from="dei_EntityDomain" xlink:to="cli_MackCaliRealtyLpMember" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_SignificantAccountingPoliciesLineItems" xlink:label="cli_SignificantAccountingPoliciesLineItems"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" order="1" xlink:from="cli_SignificantAccountingPoliciesLineItems" xlink:to="cli_SignificantAccountingPoliciesTable" use="optional" xbrldt:contextElement="segment" xbrldt:closed="true"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" xlink:label="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="2" xlink:from="cli_SignificantAccountingPoliciesLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentPolicyTextBlock" priority="1" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RealEstateHeldForDevelopmentAndSalePolicy" xlink:label="us-gaap_RealEstateHeldForDevelopmentAndSalePolicy"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="3" xlink:from="cli_SignificantAccountingPoliciesLineItems" xlink:to="us-gaap_RealEstateHeldForDevelopmentAndSalePolicy" priority="1" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EquityMethodInvestmentsPolicy" xlink:label="us-gaap_EquityMethodInvestmentsPolicy"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="4" xlink:from="cli_SignificantAccountingPoliciesLineItems" xlink:to="us-gaap_EquityMethodInvestmentsPolicy" priority="1" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_CashAndCashEquivalentsPolicyTextBlock" xlink:label="us-gaap_CashAndCashEquivalentsPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_DeferredFinancingCostsPolicyTextBlock" xlink:label="cli_DeferredFinancingCostsPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_DeferredLeasingCostsPolicyTextBlock" xlink:label="cli_DeferredLeasingCostsPolicyTextBlock"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="7" xlink:from="cli_SignificantAccountingPoliciesLineItems" xlink:to="cli_DeferredLeasingCostsPolicyTextBlock" priority="1" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" xlink:label="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy"> </loc> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" order="8" xlink:from="cli_SignificantAccountingPoliciesLineItems" xlink:to="us-gaap_GoodwillAndIntangibleAssetsGoodwillPolicy" priority="1" use="optional"> </definitionArc> |
| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_DerivativesPolicyTextBlock" xlink:label="us-gaap_DerivativesPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_RevenueRecognitionPolicyTextBlock" xlink:label="us-gaap_RevenueRecognitionPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_IncomeTaxPolicyTextBlock" xlink:label="us-gaap_IncomeTaxPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_EarningsPerSharePolicyTextBlock" xlink:label="us-gaap_EarningsPerSharePolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_DividendsAndDistributionsPayablePolicyTextBlock" xlink:label="cli_DividendsAndDistributionsPayablePolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_IssuanceCostsPolicyTextBlock" xlink:label="cli_IssuanceCostsPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_OtherComprehensiveIncomePolicyTextBlock" xlink:label="cli_OtherComprehensiveIncomePolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_RedeemableNoncontrollingInterestsPolicyTextBlock" xlink:label="cli_RedeemableNoncontrollingInterestsPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_FairValueMeasurementPolicyPolicyTextBlock" xlink:label="us-gaap_FairValueMeasurementPolicyPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2020/elts/us-gaap-2020-01-31.xsd#us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock" xlink:label="us-gaap_NewAccountingPronouncementsPolicyPolicyTextBlock"> </loc> |
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| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_LegalEntityAxis" xlink:label="dei_LegalEntityAxis"> </loc> |
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| | <loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2019/dei-2019-01-31.xsd#dei_EntityDomain" xlink:label="dei_EntityDomain"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_MackCaliRealtyLpMember" xlink:label="cli_MackCaliRealtyLpMember"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_SignificantAccountingPoliciesLineItems" xlink:label="cli_SignificantAccountingPoliciesLineItems"> </loc> |
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| | <loc xlink:type="locator" xlink:href="cli-20200331.xsd#cli_ScheduleOfRentalPropertyImprovementsNotInServiceTextBlock" xlink:label="cli_ScheduleOfRentalPropertyImprovementsNotInServiceTextBlock"> </loc> |
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