/ Dictionary / Index O omniscience: Meaning and Definition of Find definitions for: om•nis•cience Pronunciation: (om-nish'uns), [key] — n. the quality or state of being omniscient. infinite knowledge. (cap.) God. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: omniscience (Thesaurus) omnirange omniscient 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