Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unsterilised is an adjective meaning "not sterilized". It carries one recorded sense.
not sterilized
Definitions, synonyms and semantic relations for unsterilised come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.