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