hypocycloid Meaning, Definition & Usage

  1. noun a line generated by a point on a circle that rolls around inside another circle

WordNet

Hy`po*cy"cloid noun
Etymology
Pref. hypo- + cycloid: cf. F. hypocycloïde.
Definitions
  1. (Geom.) A curve traced by a point in the circumference of a circle which rolls on the concave side in the fixed circle. Cf. Epicycloid, and Trochoid.

Webster 1913