plural noun

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

Word History


New Latin, from an- + allantois + -idea

First Known Use

1860, in the meaning defined above

Time Traveler
The first known use of Anallantoidea was in 1860

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Dictionary Entries Near Anallantoidea

Cite this Entry

“Anallantoidea.” Dictionary, Merriam-Webster, Accessed 23 Sep. 2023.

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