pigeon-breasted adj 1: having a chest deformity marked by a projecting breastbone caused by infantile rickets [syn: {pigeon- breasted}, {chicken-breasted}]
Pigeon-breasted \Pi"geon-breast`ed\, a. Having a breast like a pigeon, -- the sternum being so prominent as to constitute a deformity; chicken-breasted. [1913 Webster]