English to English Dictionary -allantois

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Allantoic :: Allantoic (a.) Pertaining to, or contained in, the allantois..

Allantoid :: Allantoid (a.) Alt. of Allantoida.

Allantoid :: Allantoid (n.) A membranous appendage of the embryos of mammals, birds, and reptiles, -- in mammals serving to connect the fetus with the parent; the urinary vesicle..

Allantoidal :: Allantoidal (a.) Of or pertaining to the allantois.

Allantoidea :: Allantoidea (n. pl.) The division of Vertebrata in which the embryo develops an allantois. It includes reptiles, birds, and mammals..

Allantoin :: Allantoin (n.) A crystalline, transparent, colorless substance found in the allantoic liquid of the fetal calf; -- formerly called allantoic acid and amniotic acid..

Allantois :: Allantois (n.) Alt. of Allantoi.

Anallantoic :: Anallantoic (a.) Without, or not developing, an allantois..

Anallantoidea :: Anallantoidea (n. pl.) The division of Vertebrata in which no allantois is developed. It includes amphibians, fishes, and lower forms..