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lateral curvature of the spine, 1706, medical Latin, from Greek skoliosis "crookedness," from skolios "bent, curved," from PIE root *skel- (3) "crooked, curved, bent, perverted." Related: Scoliotic.
scoliosis sco·li·o·sis (skō'lē-ō'sĭs, skŏl'ē-)
A condition of lateral curvature of the spine, which may have just one curve or primary and secondary compensatory curves and be fixed or mobile.