Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
m.m. is a noun meaning "the pace of music measured by the number of beats occurring in 60 seconds". It carries one recorded sense.
the pace of music measured by the number of beats occurring in 60 seconds
music
Definitions, synonyms and semantic relations for m.m. come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.