Learn how to say Curvature correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word curvature:
something curved or a curved part of a thing
any normal or abnormal curving of a bodily part ⇒ curvature of the spine
(geometry) the change in inclination of a tangent to a curve over unit length of arc. For a circle or sphere it is the reciprocal of the radius See also radius of curvature, centre of curvature
the act of curving or the state or degree of being curved or bent