spheroid Meaning, Definition & Usage

  1. noun a shape that is generated by rotating an ellipse around one of its axes
    ellipsoid of revolution.
    • it looked like a sphere but on closer examination I saw it was really a spheroid

WordNet

Sphe"roid noun
Etymology
L. spheroides ball-like, spherical, Gr. sphere + form: cf. F. sphéroïde.
Definitions
  1. 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.

Webster 1913