Word | Noun | Adjective | Verb | Adverb |
---|---|---|---|---|
allantois | Yes | No | No | No |
fetal membrane | Yes | No | No | No |
allantois (noun) | fetal membrane (noun) |
---|---|
the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals) | any membrane that functions for the protection or nourishment or respiration or excretion of a developing fetus |