/ Dictionary / Index E ellipticity: Meaning and Definition of Find definitions for: el•lip•tic•i•ty Pronunciation: (i-lip-tis'i-tē, el"ip-, ē"lip-), [key] — n. the degree of divergence of an ellipse from a circle. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ellipticity (Thesaurus) elliptic integral elliptic paraboloid Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language