placentation

plac·en·ta·tion  (plsn-tshn)

n.

1.

a. Formation of a placenta in the uterus.

b. The type or structure of a placenta.

2. Botany Arrangement of placentas within the ovary.

Thesaurus

Noun	1.	placentation - the formation of the placenta in the uterus bodily function, bodily process, body process, activity - an organic process that takes place in the body; "respiratory activity"
	2.	placentation - arrangement of the ovules in the placenta and of the placentas in the ovary reproductive structure - the parts of a plant involved in its reproduction apical placentation - where one or few ovules develop at the top of a simple or compound ovary axile placentation - ovules are borne at or around the center of a compound ovary on an axis formed from joined septa basal placentation - where one or few ovules develop at the base of a simple or compound ovary free central placentation - where ovules develop on a central column in a compound ovary lacking septa or with septa at base only lamellate placentation - with ovules on thin extensions of the placentae into a compound ovary marginal placentation, ventral placentation - with ovules borne on the wall along the ventral suture of a simple ovary parietal placentation - where ovules develop on the wall or slight outgrowths of the wall forming broken partitions within a compound ovary