Anallantoidea

plural noun

An·​al·​lan·​toi·​dea

¦aˌnalənˈtȯidēə,

-naˌlanˈ-

: the division of Vertebrata, including amphibians, fishes, and cyclostomes, in which no allantois, or at most a rudimentary one, is developed compare anamniota

anallantoidean

-¦tȯidēən

adjective or noun

Word History

Etymology

New Latin, from an- + allantois + -idea

First Known Use

1860, in the meaning defined above

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