evolute

[ ev-uh-loot or, especially British, ee-vuh- ]

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

Origin of evolute

1
1720–30; <Latin ēvolūtus (past participle of ēvolvere to roll out, unfold, evolve)

Words Nearby evolute

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use evolute in a sentence

British Dictionary definitions for evolute

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

adjective
  1. biology having the margins rolled outwards

Origin of evolute

1
C19: from Latin ēvolūtus unrolled, from ēvolvere to roll out, evolve

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