a. [f. prec. + -AL 1.] Having the nature or shape of an ellipsoid.
1831. Brewster, Optics, xli. § 201. 344. A concave ellipsoidal reflector.
1845. Todd & Bowman, Phys. Anat., I. 213. Some vesicles are … ovoidal, or ellipsoidal.
1849. Murchison, Siluria, iii. (1867), 58. The Llandillo formation … rises to the surface in the form of a rugged ellipsoidal mass.
1884. Law Times, 2 Feb., 267/1. The proper shape for a ceiling of a room used for public speaking [is] ellipsoidal or coved.
