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Noun: diatom  dI-u-tum
  1. Microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica

Derived forms: diatoms

Type of: alga, algae, phytoplankton

Part of: Bacillariophyceae, class Bacillariophyceae, class Diatomophyceae, Diatomophyceae

Encyclopedia: Diatom