curvature
1. [ noun ] (mathematics,psychology) the rate of change (at a point) of the angle between a curve and a tangent to the curve
Related terms: derived_function
2. [ noun ] (medical) a curving or bending; often abnormal
Examples:

"curvature of the spine"

Related terms: condition medicine
3. [ noun ] the property possessed by the curving of a line or surface
Synonyms: curve
Related terms: shape curliness straightness arch
Similar spelling:   curvet