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The Collaborative International Dictionary of English v.0.48 (gcide)

Allantoid \Al*lan"toid\, Allantoidal \Al`lan*toid"al\, a. [Gr. ?
shaped like a sausage; ? sausage e'i^dos form.] (Anat.)
Of or pertaining to the allantois.
[1913 Webster]


Allantois \Al*lan"to*is\, Allantoid \Al*lan"toid\, ] n.. (Anat.)
A membranous appendage of the embryos of mammals, birds, and
reptiles, -- in mammals serving to connect the fetus with the
parent; the urinary vesicle.
[1913 Webster]

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