Bible Dictionaries
Ellipsoid

Webster's Dictionary

(1):

(a.) Alt. of Ellipsoidal

(2):

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

Bibliography Information
Webster, Noah. Entry for 'Ellipsoid'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​e/ellipsoid.html. 1828.