Placentation

[plæsen'teiʃәn]

解释:

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

(noun.) the formation of the placenta in the uterus.

手打:托马斯--From WordNet

解释:

(n.) The mode of formation of the placenta in different animals; as, the placentation of mammals.

(n.) The mode in which the placenta is arranged or composed; as, axile placentation; parietal placentation.

杰弗里整理