Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
pinnated is an adjective meaning "(of a leaf shape) featherlike; having leaflets on each side of a common axis". It carries one recorded sense.
Definitions, synonyms and semantic relations for pinnated come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.