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[kur-vuh-cher, -choo r] /ˈkɜr və tʃər, -ˌtʃʊər/
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.
  1. (at a point on a curve) the derivative of the inclination of the tangent with respect to arc length.
  2. the absolute value of this derivative.
something curved.
Origin of curvature
late Middle English
1375-1425; late Middle English < Latin curvātūra, equivalent to curvāt(us) past participle of curvāre to bend, curve + -ūra -ure. See -ate1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for curvature
  • By tweaking the features of the model fish, they could estimate how body curvature affected range.
  • Yes, you'll see curvature, but you're not seeing the whole thing.
  • He got toward the base of the face, still well above the bottom, and rounded out of the drop as the surface curvature allowed.
  • The vertebral column has also a slight lateral curvature, the convexity of which is directed toward the right side.
  • In severe cases of lateral curvature of the vertebral column the thorax becomes much distorted.
  • Another point was the forward carriage of the head and the clumsy and inhuman curvature of the spine.
  • Edith suffered from curvature of the spine and was forced to wear a heavy metal cage.
  • As the balloon is inflated, the curvature of the surface diminishes.
  • So he added a term to the curvature side of the equation called the cosmological constant.
  • Many experts have questioned whether a brace is any better than nature in halting curvature progress.
British Dictionary definitions for 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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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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.

Online Etymology Dictionary, © 2010 Douglas Harper
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curvature in Medicine

curvature cur·va·ture (kûr'və-chur', -chər)
A curving or bending, especially an abnormal one.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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