'Chicken-breasted' definitions:

Definition of 'chicken-breasted'

From: WordNet
adjective
Having a chest deformity marked by a projecting breastbone caused by infantile rickets [syn: pigeon- breasted, chicken-breasted]

Definition of 'Chicken-breasted'

From: GCIDE
  • Chicken-breasted \Chick"en-breast`ed\, a. Having a narrow, projecting chest, caused by forward curvature of the vertebral column. [1913 Webster]