DICT.TW Dictionary Taiwan

 Pro·late a.  Stretched out; extended; especially, elongated in the direction of a line joining the poles; as, a prolate spheroid; -- opposed to oblate.
 Prolate cycloid. See the Note under Cycloid.
 Prolate ellipsoid or Prolate spheroid Geom., a figure generated by the revolution of an ellipse about its major axis.  Contrasted with oblate spheroid.  See Ellipsoid of revolution, under Ellipsoid.

 prolate cycloid
      n : a cycloid generated by a point outside the rolling circle