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Spirostomum

noun
Spi·​ros·​to·​mum | \ spīˈrästəməm\

Definition of Spirostomum

: a genus (the type of the family Spirostomidae) of large cylindrical elongated heterotrichous ciliates widely distributed in fresh and salt water

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History and Etymology for Spirostomum

New Latin, from spir- + -stomum

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