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placenta是什么意思

placenta

美[plə'sentə]  英[plə'sentə]
n.  胎盘;胎座
  形容词:placental  名词复数:placentas

详细释义

n.(名词)
  1. 【解】胎盘
  2. 【植】胎座
  3. 胞衣
  4. 动物中相似的结构
  5. 载孢囊及孢子的组织块

英英释义

Noun
  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

例句

用作名词(n.)
  1. Earlier studies linked the placenta to the disease.早期的研究认为,该病与胎盘有关。
  2. Methamphetamine passes through the placenta and is secreted in the breast milk.甲基苯丙胺通过胎盘分泌在母乳中。
  3. Starch grains present in the embryo sac and placenta are utilized by the embryo.存在于胚囊和胎座中的淀粉粒为胚胎所利用。
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