plural noun
An·​al·​lan·​toi·​dea | \ ¦aˌnalənˈtȯidēə, -naˌlanˈ- \

Definition of Anallantoidea

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

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Other Words from Anallantoidea

anallantoidean \ -​¦tȯidēən \ adjective or noun

First Known Use of Anallantoidea

1860, in the meaning defined above

History and Etymology for Anallantoidea

New Latin, from an- + allantois + -idea

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The first known use of Anallantoidea was in 1860

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Cite this Entry

“Anallantoidea.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2021.

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