atom.
an atom (the smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons)
Meaning & usage
an atom (the smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons)
et atom består av en atomkjerne omgitt av elektroner
an atom (the smallest, indivisible constituent part or unit of something)
Where this word comes from
From Ancient Greek ἄτομος (átomos, “indivisible, uncut, undivided”), both from ἀ- (a-, “not, without”), from Proto-Hellenic *ə- (“un-, not; without, lacking”), from Proto-Indo-European *n̥- (“not, un-”) + and from τέμνω (témnō, “to cut, hew, wound, butcher”), from Proto-Indo-European *tm̥-n-h₁-, from *temh₁- (“to cut”).
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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.