coelenteron

noun

coe·len·ter·on si-ˈlen-tə-ˌrän

-rən

plural coelentera si-ˈlen-tə-rə

: the internal cavity of a cnidarian

Word History

Etymology

New Latin, from Greek koilos + enteron

First Known Use

1885, in the meaning defined above

Time Traveler

The first known use of coelenteron was in 1885

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Browse Nearby Words

coelenterate

coelenteron

coelestine

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Cite this Entry

Style

“Coelenteron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coelenteron. Accessed 25 Jul. 2025.

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