# curvature

- 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.

## Origin of curvature

## Related Words for curvature

curve, shape, arc, bend, bow, arch, round, incurvation, deflection, flexure, curving, arching## Examples from the Web for curvature

### Contemporary Examples of curvature

Even if you put it on a big building, the curvature of the earth prevents radar from going to the airplane.

He was described by Shakespeare as having a hunchback and indeed the skeleton shows evidence of curvature of the spine.

CONFIRMED: Skeleton Found Under City Car Park IS That Of Villainous Richard IIITom Sykes

February 4, 2013

### Historical Examples of curvature

What curvature is to lines, gradation is to shades and colors.

Modern Painters Volume II (of V)John Ruskin

I might just as well have suspected the girl of a curvature of the spine.

FalkJoseph Conrad

Slight inequality of curvature in meridians of right cornea.

A Book of BurlesquesH. L. Mencken

The place had a curvature like that of the seats in a theatre.

Ten Books on ArchitectureVitruvius

Curvature of the spine is more common than is usually thought.

The Mother and Her ChildWilliam S. Sadler

## curvature

- something curved or a curved part of a thing
- any normal or abnormal curving of a bodily partcurvature 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 radiusSee also radius of curvature, centre of curvature
- the act of curving or the state or degree of being curved or bent

## Word Origin and History for curvature

1660s, from Latin curvatura "a bending," from curvatus, past participle of curvare "to bend" (see curve (v.)). In non-Euclidian geometry, from 1873.

## curvature

(kûr′və-chur′)- A curving or bending, especially an abnormal one.