名詞 placenta:

1. that part of the ovary of a flowering plant where the ovules form
2. the vascular structure in the uterus of most mammals providing oxygen and nutrients for and transferring wastes from the developing fetus

1. Formation of a placenta in the uterus.
   胎盤(pán)形成胎盤(pán)在子宮中的形成過(guò)程

pla.cen.ta

n.（名詞）
【復(fù)數(shù)】 pla.cen.tas 或 pla.cen.tae [-tô]

A membranous vascular organ that develops in female mammals during pregnancy, lining the uterine wall and partially enveloping the fetus, to which it is attached by the umbilical cord. Following birth, the placenta is expelled.
胎盤(pán)：雌性哺乳動(dòng)物在懷孕期間生長(zhǎng)的薄膜血管器官，靠著子宮壁且包住由臍帶束住的胎兒。隨著胎兒出生，胎盤(pán)去除
An organ with similar functions in some nonmammalian animals, such as certain sharks and reptiles.
（類(lèi)似的）胎盤(pán)：在一些非哺乳動(dòng)物身上有類(lèi)似功能的器官，如某種鯊魚(yú)和蛇
Botany The part within the ovary of a flowering plant to which the ovules are attached.
【植物學(xué)】 胎座：開(kāi)花植物子房?jī)?nèi)的某部分，胚珠可附于其上

來(lái)源：
New Latin
現(xiàn)代拉丁語(yǔ)
from Latin [flat cake]
源自 拉丁語(yǔ) [平餅]
alteration of Greek plakoenta [from accusative of] plakoeis [flat]
希臘語(yǔ) plakoenta的變化 [] 源自plakoeis的使役動(dòng)詞 [平坦的]
from plax plak- [flat land, surface] * see pl3k-
源自 plax plak- [平地，表層] *參見(jiàn) pl3k-

【引伸】
placen.tal
adj.（形容詞）