Source : Webster's Revised Unabridged Dictionary (1913)

Ellipsoid \El*lip"soid\, Ellipsoidal \El`lip*soi"dal\, a.
   Pertaining to, or shaped like, an ellipsoid; as, ellipsoid or
   ellipsoidal form.

Source : WordNet®

ellipsoidal
     adj : in the form of an ellipse [syn: {ellipsoid}, {spheroidal}, {non-circular}]