plural noun
Chei·​lo·​sto·​ma·​ta | \ ˌkīləˈstōmətə\

Definition of Cheilostomata

: a large order of marine bryozoans (class Gymnolaemata) having the colony erect or encrusting, the zooecia more or less tubular, and the aperture closed by a chitinous operculum when the polypide is retracted

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First Known Use of Cheilostomata

1852, in the meaning defined above

History and Etymology for Cheilostomata

borrowed from New Latin, plural of Cheilostoma, from cheilo- cheilo- + -stoma -stoma entry 1

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The first known use of Cheilostomata was in 1852

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