Main Entry: ky·pho·sis

Pronunciation: \kī-ˈfō-səs\

Function: noun

Etymology: New Latin, from Greek kyphōsis, from kyphos humpbacked

Date: 1847

: exaggerated outward curvature of the thoracic region of the spine resulting in a rounded upper back — compare lordosis

— ky·phot·ic \-ˈfä-tik\ adjective