placenta

FREQ #23156

n. 胎盘, 胎座 [化] 胎盘

发音

其它 /pləˈsɛntə/

词形变化

placentae 复数 placentae placentas placentas 复数

释义与例句

n.
  1. 1.

    An organ in most mammals during gestation that supplies food and oxygen to the foetus and passes back waste. It is on the wall of the uterus and links to the foetus through the umbilical cord. It is expelled after birth.

    胎盘

    医学
  2. 2.

    In flowering plants, the part of the ovary where ovules develop; in non-flowering plants where the spores develop.

    生物 植物学

词汇关系

名词

下位词 1

afterbirth

部分词 2

veil caul

整体词 3

womb uterus ovary

相关短语

placenta praevia [医] 前置胎盘 placenta praevias placenta previa 前置胎盘 placenta previas placenta cake placenta cakes

词源

Elision for phrases such as New Latin placenta uterī (“womb cake”), placenta uterina (“uterine cake”), from Latin placenta (“flat cake”), because of the flat round shape of the afterbirth. Doublet of palacsinta and palatschinke.

来源：wiktionary