allantois
A membranous appendage of the embryos of mammals, birds, and reptiles, -- in mammals serving to connect the fetus with the parent; the urinary vesicle.
Length: 9Scrabble® value: 9Words With Friends® value: 12
Numerology value: 4 (Pythagorean letter-sum). See what this number means on NumberAngel.
Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.