allantois

== English == === Etymology === Ancient Greek ἀλλαντοειδής (allantoeidḗs, “sausage-shaped”). Compare Greek αλλαντικό (allantikó). === Pronunciation === IPA(key): /əˈlæntəʊ.ɪs/ === Noun === allantois (plural allantoises or allantoides) (anatomy) A sac, having a number of functions, that develops in the alimentary canal of the embryos of mammals, birds and reptiles. ==== Synonyms ==== allantoic sac allantoid ==== Derived terms ==== ==== Translations ==== === Anagrams === Atlas lion