kyphoscoliosis /kī′fōskō′lē·ō″sis/ [Gk, kyphos, hunchbacked + skolios curved + osis, condition] , an abnormal condition characterized by an anteroposterior and a lateral curvature of the spine. It occurs in children and adults and is often associated with cor pulmonale. Also called scoliokyphosis. Compare kyphosis, scoliosis. −kyphoscoliotic, adj.