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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
A variant of atomi, the plural of atomus (“hypothetical particle posited as an ultimate and indivisible component of matter; mote of dust in a sunbeam”) treated as a singular form. Atomus is derived from Latin atomus, from Ancient Greek ἄτομος (átomos, “indivisible”, adjective), from ᾰ̓- (ă-, prefix forming terms having an opposite sense) + τομ- (tom-) (stem of τέμνω (témnō, “to cut”), ultimately from Proto-Indo-European *temh₁- (“to cut”)) + -ος (-os, suffix forming nouns of action or result). Doublet of atom.
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Classic usage
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