am·ni·on /ˈæmniˌɑn, ən/
羊膜[包圍胎兒的膜]
am·ni·on /ˈæmnɪˌɑn, ən/ 名詞
羊膜
Am·ni·on n. Anat. A thin membrane surrounding the embryos of mammals, birds, and reptiles.
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amnion
n : thin innermost membranous sac enclosing the developing
embryo of higher vertebrates (reptiles, birds and
mammals) [syn: amniotic sac, amnios]
[also: amnia (pl)]