Meaning of AMNIOS

WordNet Dictionary
	Definition:		[n]  thin innermost membranous sac enclosing the developing embryo in higher vertebrates (Amniota: reptiles; birds; mammals)
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	Synonyms:		amnion, amniotic sac
	See Also:		fetal membrane, sac
Webster's 1913 Dictionary
	Definition:		\Am"ni*os\, n. Same as {Amnion}.
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