k-meson km • kmet · · · Info · Definitions · Synonyms · Characters · · k-meson · · Text Common · · Latin · · Scripts 7 · · Length 2 · · Syllables Definitions · · · (noun) an unstable meson produced as the result of a high-energy particle collision. Synonyms: kaon, kappa-meson, K particle. · · Noun Definition 1 Synonyms · · · kaon · · Synonym 1 kappa-meson · · Synonym 2 k particle · · Synonym 3 Characters · · - hyphen-minus U+002D e latin small letter e U+0065 k latin small letter k U+006B m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073