Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
vocalism is a noun meaning "the system of vowels used in a particular language". It carries 2 recorded senses.
the system of vowels used in a particular language
the sound made by the vibration of vocal folds modified by the resonance of the vocal tract
“a singer takes good care of his voice”
“the giraffe cannot make any vocalizations”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for vocalism come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.