Definition of amnion
English to English noun - thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals)
source: WordNet 3.0 - A thin membrane surrounding the embryos of mammals, birds, and reptiles.
source: Webster 1913
Visual Synonyms 
Nearby Word
amnion, anion, amnio, amon, amino, annon, anona, amuin, amine, anon., anonym, ann, annona, amenia, ammino, ammonium ion, anyone, ain, anoman, ano
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