Spheroid
Pronunciation : Sphe"roid
Part of Speech : n.
Etymology : [L. spheroides ball-like, spherical, Gr. sph?ro?de.]
Definition : Defn: A body or figure approaching to a sphere, but not perfectly spherical; esp., a solid generated by the revolution of an ellipse about one of its axes. Oblate spheroid, Prolate spheroid. See Oblate, Prolate, and Ellipsoid.
Source : Webster's Unabridged Dictionary, 1913