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cycloid definition

cy·cloid (sī′klo̵id′)

noun

Geom. a curve traced by any point on a radius, or an extension of the radius, of a circle which rolls without slipping through one complete revolution along a straight line in a single plane; trochoid

Etymology: Gr kykloeidēs, circular < kyklos (see wheel) + -eidēs, -oid

adjective

  1. circular
  2. designating or having fish scales that are roundish in form with smooth edges
  3. designating or of a cyclothymic person

Related Forms:

  • cycloidal cy·cloi′·dal (sī klo̵id′'l) adjective

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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