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