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