Ellipsoid

[i'lipsɒid]

(noun.) a surface whose plane sections are all ellipses or circles; 'the Earth is an ellipsoid'.

(adj.) having the nature or shape of an ellipsoid .

Checked by Ives--From WordNet

(n.) A solid, all plane sections of which are ellipses or circles. See Conoid, n., 2 (a).

(a.) Alt. of Ellipsoidal

Editor: Lois