What is "prolate cycloid"

Prolate \Pro"late\, a. [L. prolatus, used as p. p. of proferre to bring forth, to extend; pro + latus, p. p. See Pro-, and Tolerate. ] 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.

n. a cycloid generated by a point outside the rolling circle