the act of curving or the state of being curved.

a curved condition, often abnormal

curvature of the spine.

the degree of curving of a line or surface.

Geometry .

(at a point on a curve) the derivative of the inclination of the tangent with respect to arc length.

the absolute value of this derivative.

something curved.

noun

arc , arch , arching , bend , bow , curve , curving , curvity , deflection , flexure , incurvation , round , shape , crook , turn , cyrtosis , ratio , sinuosity