spheroid

 
Pronunciation: /ˈsfɪərɔɪd/

noun

  • a sphere-like but not perfectly spherical body.
  • a solid generated by a half-revolution of an ellipse about its major axis ( prolate spheroid) or minor axis ( oblate spheroid).

Derivatives

spheroidal

Pronunciation: /sfɪəˈrɔɪd(ə)l/
adjective

spheroidicity

Pronunciation: /-ˈdɪsɪti/
noun