diatom

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noun di·a·tom \ˈdī-ə-ˌtäm\

Definition of diatom

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

Origin and Etymology 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


Medical Dictionary

diatom

play
noun di·a·tom \ˈdī-ə-ˌtäm\

Medical Definition of diatom

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


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