atom

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈætəm/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈætəm/ ,USA pronunciation: respelling(atəm)


atom
WordReference English Thesaurus © 2025
Sense: Tiny particle
Synonyms:
fragment, mite, speck Collocations, particle, iota, mote, jot, grain Collocations, scintilla, bit Collocations
Sense: Particle in atomic physics
Synonyms:
the smallest particle of an element, molecule, smallest quantity of a radical, basic unit, basic constituent, irreducible unit, irreducible constituent, atomic mass unit, physical particle, unit of matter


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