chei·​lo·​stome | \ ˈkī-lə-ˌstōm How to pronounce cheilostome (audio) \
variants: or less commonly chilostome
plural cheilostomes also chilostomes

Definition of cheilostome

: a bryozoan of the order Cheilostomata Cheilostomes are a diverse group of predominantly sessile invertebrates that have been abundant on the sea floor for about 100 million years.— Jeremy B. C. Jackson and Alan H. Cheetham, Science, 4 May 1990

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First Known Use of cheilostome

1896, in the meaning defined above

History and Etymology for cheilostome

borrowed from New Latin Cheilostoma, singular of Cheilostomata cheilostomata

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The first known use of cheilostome was in 1896

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Cite this Entry

“Cheilostome.” Dictionary, Merriam-Webster, Accessed 8 Dec. 2021.

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