Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
chicken-breasted is an adjective meaning "having a chest deformity marked by a projecting breastbone caused by infantile rickets". It carries one recorded sense.
having a chest deformity marked by a projecting breastbone caused by infantile rickets
Definitions, synonyms and semantic relations for chicken-breasted come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.