Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
keratinisation is a noun meaning "organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)". It carries one recorded sense.
organic process by which keratin is deposited in cells and the cells become horny (as in nails and hair)
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 keratinisation come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.