allantois
9 points
English
9 letters
Not in frequency data
Valid in: UK dictionary
Definitions
noun
the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals)
Definition: WordNet 3.1, Princeton University.
Word forms
plural allantoises
Forms from WordNet 3.1 morphology — every form attested in the dictionary.
Crossword clues
- “A membranous appendage of the embryos of mammals, birds, and reptiles, -- in mammals serving to connect the fetus with the parent; the urinary vesicle.” web-def
- “the vascular fetal membrane that lies below the chorion and develops from the hindgut in many embryonic higher vertebrates (reptiles, birds and mammals)” wn-def
Anagrams
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