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evolute

[ ev-uh-lootor, especially British, ee-vuh- ]

noun

, Geometry.
  1. the locus of the centers of curvature of, or the envelope of the normals to, another curve. Compare involute ( def 5 ).


evolute

/ ˈɛvəˌluːt /

noun

  1. a geometric curve that describes the locus of the centres of curvature of another curve (the involute ). The tangents to the evolute are at right angles to the involute
“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

adjective

  1. biology having the margins rolled outwards
“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 History and Origins

Origin of evolute1

1720–30; < Latin ēvolūtus (past participle of ēvolvere to roll out, unfold, evolve )
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Word History and Origins

Origin of evolute1

C19: from Latin ēvolūtus unrolled, from ēvolvere to roll out, evolve
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Example Sentences

The Russian cars listed were five Lada models, produced by Russia's largest carmaker Avtovaz, as well as the UAZ, Aurus and Moskvich brands, and Evolute electric cars.

From Reuters

It matters little whether a person can correctly derive the words telegraph, tangent, ellipse, evolute, etc., if the correct idea is present in his mind when he uses them.

What do you understand the Spiritualist means when he claims that the soul goes to the "Summer land," and there continues to work and evolute to higher planes?

The intrinsic equation is s = 4a sin ψ, and the equation to the evolute is s = 4a cos ψ, which proves the evolute to be a similar cycloid placed as in fig.

His enquiries into evolutes enabled him to prove that the evolute of a cycloid was an equal cycloid, and by utilizing this property he constructed the isochronal pendulum generally known as the cycloidal pendulum.

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evoked potentialevolution