atomic clock atomic bomb • atomic cocktail · · · Info · Definitions · Characters · · atomic clock · · Text Common · · Latin · · Scripts 12 · · Length 4 · · Syllables Definitions · · · (noun) a timepiece that derives its time scale from the vibration of atoms or molecules. Synonyms: atomic clock. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C m latin small letter m U+006D o latin small letter o U+006F t latin small letter t U+0074