placentation

[解、动]胎盘形成

词形变化

placentations 复数 placentations

释义与例句

n.
  1. 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.

    可数 不可数 生物
  2. 2.

    The manner in which the seeds are attached to the placenta within the ovary locules.

    可数 不可数 生物 植物学

    Parietal placentation occurs in the Brassicaceae family.

词汇关系

名词

上位词 3

activity bodily function bodily process

词源

From placenta + -ation.

来源：wiktionary