# curvature

## cur·va·ture

*noun*\ˈkər-və-ˌchu̇r, -chər, -ˌtyu̇r, -ˌtu̇r\

: the amount that something is curved

medical : a condition in which your spine is curved in an abnormal way

## Full Definition of *CURVATURE*

**:**a measure or amount of curving;

*specifically*

**:**the rate of change of the angle through which the tangent to a curve turns in moving along the curve and which for a circle is equal to the reciprocal of the radius

*a*

**:**an abnormal curving (as of the spine)

*b*

**:**a curved surface of an organ

## Examples of *CURVATURE*

- The lenses have different
*curvatures*. - the
*curvature of*the earth - The machine measures the eyeball's degree of
*curvature*. - a disease that can cause
*curvature*of the spine

## First Known Use of *CURVATURE*

## Rhymes with *CURVATURE*

## cur·va·ture

*noun*\ˈkər-və-ˌchu̇(ə)r, -chər, -ˌt(y)u̇(ə)r\

*(Medical Dictionary)*

## Medical Definition of *CURVATURE *

**:**a curved surface of an organ (as the stomach)—see greater curvature, lesser curvature

## curvature

*noun*

*(Concise Encyclopedia)*

Measure of the rate of change of direction of a curved line or surface at any point. In general, it is the reciprocal of the radius of the circle or sphere of best fit to the curve or surface at that point. This notion of best fit derives from the principle that only one circle can be drawn though any three points not on the same line. The radius of curvature at the middle point is approximately equal to the radius of that one circle. This calculation becomes more exact the closer the points are. The precise value is found using a limit. Because a straight line can be thought of as an arc of a circle of infinite radius, its curvature is zero.

## Learn More About *CURVATURE*

## Browse

Previous Word in the Dictionary: curvation

All Words Near: curvature

**Ask The Editor** Videos

## Seen & Heard

What made you want to look up *curvature*? Please tell us where you read or heard it (including the quote, if possible).