Placentation Definition

plăsən-tāshən
noun
The formation or structure of a placenta.
Webster's New World
The manner in which the placenta is attached to the uterus.
Webster's New World
The manner in which the placentas are arranged in an ovary.
Webster's New World

(biology) The local fusion of the embryonic stage of an animal to its parent for physiological exchange to promote the growth and development of the young; involves a placenta in non-egglaying mammals.

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