PLACENTATION

placentation

(noun) arrangement of the ovules in the placenta and of the placentas in the ovary

placentation

(noun) the formation of the placenta in the uterus

Source: WordNet® 3.1

Etymology

Noun

placentation (countable and uncountable, plural placentations)

(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.

Source: Wiktionary

Plac`en*ta"tion, n.

1. (Anat.)

Definition: The mode of formation of the placenta in different animals; as, the placentation of mammals.

2. (Bot.)

Definition: The mode in which the placenta is arranged or composed; as, axile placentation; parietal placentation.

Source: Webster’s Unabridged Dictionary 1913 Edition

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