cycloid

  1. Noun.  (geometry) The locus of a point on the circumference of a circle that rolls without slipping on a fixed straight line.
  2. Noun.  (zoology) A fish having cycloid scales.
  3. Adjective.  Resembling a circle; cycloidal.
  4. Adjective.  (zoology) (''of fish scales'') Thin and rounded, with smooth edges.

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This entry was last updated on RefTopia from its source on 3/20/2012.