dowager's humpdow·a·ger's hump
a condition caused by osteoporosis in which the shoulders are rounded and the spine becomes prominently bowed, forming a hump in the upper back
Origin of dowager's humpso called because often seen in older women
An abnormal curvature of the spine that is primarily manifested as a rounded hump in the upper back and that typically affects older women. The curvature is the result of collapse of the spinal column caused by osteoporosis.