Diatom — definition

1. diatom (Noun)

1 definition

diatom (Noun) — Microscopic unicellular marine or freshwater colonial alga having cell walls impregnated with silica.

3 types of
alga algae phytoplankton
4 parts of
Bacillariophyceae Diatomophyceae class Bacillariophyceae class Diatomophyceae