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3 ENTRIES FOUND:

diatom

noun di·a·tom \ˈdī-ə-ˌtäm\

Definition of DIATOM

:  any of a class (Bacillariophyceae) of minute planktonic unicellular or colonial algae with silicified skeletons that form diatomaceous earth

Origin of DIATOM

ultimately from Greek diatomos cut in half, from diatemnein to cut through, from dia- + temnein to cut — more at tome
First Known Use: 1845

diatom

noun di·a·tom \ˈdī-ə-ˌtäm\   (Medical Dictionary)

Medical Definition of DIATOM

:  any of a class (Bacillariophyceae) of minute planktonic unicellular or colonial algae with silicified skeletons that form diatomite

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