Scoliosis

n. abnormal curvature of the spine (Medicine)

Scoliosis is a condition that involves complex lateral and rotational curvature and deformity of the spine. It is typically classified as congenital (caused by vertebral anomalies present at birth), idiopathic  (sub-classified as infantile, juvenile, adolescent, or adult according to when onset occurred) or as having developed as a secondary symptom of another condition, such as cerebral palsy or spinal muscular atrophy.
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Scoliosis is a side-to-side curvature of the spine. Description When viewed from the rear, the spine usually appears perfectly [more]Scoliosis - Community and Resources

Noun
1. an abnormal lateral curve to the vertebral column
(hypernym) spinal curvature

(n.)
A lateral curvature of the spine.