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English Dictionary: Evolute by the DICT Development Group
1 result for Evolute
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
   Evolute \Ev"o*lute\, n. [L. evolutus unrolled, p. p. of
      evolvere. See {Evolve}.] (Geom.)
      A curve from which another curve, called the involute or
      evolvent, is described by the end of a thread gradually wound
      upon the former, or unwound from it. See {Involute}. It is
      the locus of the centers of all the circles which are
      osculatory to the given curve or evolvent.
      Note: Any curve may be an evolute, the term being applied to
               it only in its relation to the involute.
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