Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
totalisator is a noun meaning "computer that registers bets and divides the total amount bet among those who won". It carries one recorded sense.
computer that registers bets and divides the total amount bet among those who won
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 totalisator come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.