allomaternal

adjective
al·lo·ma·ter·nal | \ ˌa-lō-mə-ˈtər-nəl \

Definition of allomaternal 

: of, relating to, or provided by an allomother … there is a correlation between allomaternal care and enhanced maternal reproductive success. —Sarah Blaffer Hrdy, in Neurobiology of the Parental Brain, 2008

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First Known Use of allomaternal

1990, in the meaning defined above

History and Etymology for allomaternal

allo- + maternal entry 1

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The first known use of allomaternal was in 1990

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