plural noun
Gym·​no·​sto·​ma·​ta | \ˌjimnəˈstōmətə\

Definition of Gymnostomata 

: a suborder of holotrichous ciliates comprising holozoic forms with cytostome but without peristome or specialized oral cilia

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History and Etymology for Gymnostomata

New Latin, from gymn- + -stomata

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the figure or shape of a crescent moon

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