Curvature
WordNet
noun
(1) The property possessed by the curving of a line or surface
(2) The rate of change (at a point) of the angle between a curve and a tangent to the curve
(3) (medicine) a curving or bending; often abnormal
"Curvature of the spine"
WiktionaryText
Noun
- The shape of something curved.
- The extent to which a subspace is curved within a metric space.
- The extent to which a Riemannian manifold is intrinsically curved.