Medical Dictionary

Eutheria

noun plural Eu·the·ria \ yu̇-ˈthir-ē-ə \

medical Definition of Eutheria

: a major division of mammals characterized by the attachment of the developing fetus to the maternal uterus by a placenta and including all mammals living at the present time except the marsupials

eutherian

play \-ē-ən\ adjective or noun

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