Spheroid
['sfɪərɒɪd] or ['sfɪrɔɪd]
Definition
(noun.) a shape that is generated by rotating an ellipse around one of its axes; 'it looked like a sphere but on closer examination I saw it was really a spheroid'.
Editor: Pasquale--From WordNet
Definition
(n.) 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.
Editor: Nicolas