curvature vs contour

curvature and contour both are nouns.

Word	Noun	Adjective	Verb	Adverb
curvature	Yes	No	No	No
contour	Yes	No	Yes	No

As nouns, contour is a hypernym of curvature; that is, contour is a word with a broader meaning than curvature:

Other hypernyms of curvature include configuration, conformation, form, shape.

curvature (noun)	contour (noun)
the rate of change (at a point) of the angle between a curve and a tangent to the curve	any spatial attributes (especially as defined by outline)
the property possessed by the curving of a line or surface	a feature (or the order or arrangement of features) of anything having a complex structure
(medicine) a curving or bending; often abnormal	a line drawn on a map connecting points of equal height

curvature (verb)	contour (verb)
	form the contours of