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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
cycloid Usage Examples

Modifies a noun

  • scale: Ctenoid scales resemble cycloid scales but have comb-like teeth on their overlapping edge.