Found 2 items, similar to amnios.
English → English (WordNet) Definition: amnios amnios n : thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals) [syn: amnion, amniotic sac]
English → English (gcide) Definition: Amnios Amnios \Am"ni*os\, n. Same as Amnion. [1913 Webster] ||