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Diatoma

noun
Di·​at·​o·​ma | \dīˈatəmə\

Definition of Diatoma 

: a genus of freshwater diatoms (family Diatomaceae) that sometimes cause aromatic or disagreeable odors in water

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History and Etymology for Diatoma

New Latin, from Greek diatomē, feminine of diatomos cut in half, from diatemnein to cut through, from dia- + temnein to cut

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