/ Dictionary / Index N non-Euclidean: Meaning and Definition of Find definitions for: non-Eu•clid•e•an Pronunciation: (non"y-klid'ē-un), [key] — adj. differing from the postulates of Euclid or based upon postulates other than those of Euclid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nonethnic non-Euclidean geometry Related Content Daily Word Quiz: abdicate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language