Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
dissimilation is a noun meaning "a linguistic process by which one of two similar sounds in a word becomes less like the other". It carries 2 recorded senses.
a linguistic process by which one of two similar sounds in a word becomes less like the other
“the Old French MARBRE became the English MARBLE by dissimilation”
breakdown in living organisms of more complex substances into simpler ones together with release of energy
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 dissimilation come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.