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