Placentation
WordNet

noun


(1)   Arrangement of the ovules in the placenta and of the placentas in the ovary
(2)   The formation of the placenta in the uterus
WiktionaryText

Noun


placentation
  1. 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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