funnel chest n a depression of the anterior wall of the chest produced by a sinking in of the sternum called also funnel breast, pectus excavatum
* * *
depression of the breastbone and inward curving of the costal cartilages articulating with it, resulting in deformity of the chest. It may displace the heart to the left and can cause slight breathlessness. Medical name: pectus excavatum.
Medical dictionary. 2011.