Prolate cycloid

from WordNet (r) 3.0 (2006)

prolate cycloid
    n 1: a cycloid generated by a point outside the rolling circle

from The Collaborative International Dictionary of English v.0.48

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}.
   [1913 Webster]

   {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}.
      [1913 Webster]