| 词汇 | amnion |
| 释义 | amnion noun [ C ] biology specialized uk/ˈæm.ni.ən/ us/ˈæm.ni.ən/ amnions or amnia uk/ˈæm.ni.ə/ us/ˈæm.ni.ə/ （哺乳动物、鸟类或爬行动物胎儿的）羊膜 a bag made of thin skin that contains amniotic fluid and surrounds the embryo of a mammal, bird, or reptile inside its mother Related word: amniotic |
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