Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
k-meson is a noun meaning "an unstable meson produced as the result of a high-energy particle collision". It carries one recorded sense.
an unstable meson produced as the result of a high-energy particle collision
Definitions, synonyms and semantic relations for k-meson come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.