caesium clock caesium • caespitose · · · Info · Definitions · Characters · · caesium clock · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) an atomic clock based on the energy difference between two states of the caesium nucleus in a magnetic field. Synonyms: caesium clock. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 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 s latin small letter s U+0073 u latin small letter u U+0075