placentation

Noun

 * 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.
 * 2)  The manner in which the seeds are attached to the placenta within the ovary locules.
 * Parietal placentation occurs in the Brassicaceae family.
 * Parietal placentation occurs in the Brassicaceae family.