diatom.
Any of a group of minute unicellular algae having a siliceous covering of great delicacy, now categorized as class Diatomophyceae or division Bacillariophyta.
Meaning & usage
Any of a group of minute unicellular algae having a siliceous covering of great delicacy, now categorized as class Diatomophyceae or division Bacillariophyta.
Where this word comes from
From (deprecated) genus name Diatoma, from Ancient Greek διάτομος (diátomos, “cut through, cut in half”).
A molecule composed of two atoms of the same element; a homonuclear diatomic molecule.
Where this word comes from
From di- + atom.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.