placentation

Formation of a placenta in the uterus.

The type or structure of a placenta.

Arrangement of placentas within the ovary.

In zoology: The attachment of the embryo or fetus to the uterus by means of a placenta; uterogestation.

The mode in which this attachment is effected; the manner of the disposition or construction of the placenta: as, deciduate or discoidal Placentation.

In botany, the disposition or arrangement of the placentas.

The mode of formation of the placenta in different animals.

The mode in which the placenta is arranged or composed

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