Hypotrochoid

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Hypotrochoid \Hy`po*tro"choid\, n. [Pref. hypo- + trochoid.]
     (Geom.)
     A curve, traced by a point in the radius, or radius produced,
     of a circle which rolls upon the concave side of a fixed
     circle. See {Hypocycloid}, {Epicycloid}, and {Trochoid}.
     [1913 Webster]