HyperDic: amniotic_sac

English > 1 sense of the expression amniotic sac:
NOUNanimalamniotic sac, amnion, amniosthin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
English > amniotic sac: 1 sense > noun 1, animal
MeaningThin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals).
Synonymsamnion, amnios
Categorymammal, mammalianAny warm-blooded vertebrate having the skin more or less covered with hair
Part ofamnioteAny member of the Amniota
fetal membraneAny membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus
BroadersacA structure resembling a bag in an animal
Spanishamnios
Catalanamni, amnios, bossa amniòtica

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