- The act of curving, or the state of being bent or
curved; a curving or bending, normal or abnormal, as of a line or
surface from a rectilinear direction; a bend; a curve. - The amount of degree of bending of a mathematical curve,
or the tendency at any point to depart from a tangent drawn to the
curve at that point.
Meaning of 'curvature' (Princeton's WordNet)
1 . curvature
[ n]
Meaning (1): - (medicine) a curving or bending; often abnormal