Definition of amniotic sac Amniotic sac
We found 2 definitions of amniotic sac from 2 different sources.
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What does amniotic sac mean?
WordNet
Noun |
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| amniotic sac - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals) | ||
| amnion, amnios | ||
| sac a structure resembling a bag in an animal | ||
| amniote any member of the Amniota | ||
| fetal membrane any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus | ||
| mammal, mammalian any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk | ||
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