/ Dictionary / Index X XOR: Meaning and Definition of Find definitions for: XOR Pronunciation: (eks'ôr"), [key] a Boolean operator that returns a positive result when either but not both of its operands are positive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. xoanon Xosa Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language