plural noun

: a class of tunicates comprising simple ascidians, compound ascidians that reproduce by budding and remain connected together embedded in a common test, and certain atypical pelagic compound ascidians (as of the genus Pyrosoma)

Word History


New Latin, from Ascidia entry 1 + -acea

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Dictionary Entries Near Ascidiacea

Cite this Entry

“Ascidiacea.” Dictionary, Merriam-Webster, Accessed 7 Dec. 2023.

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