/ Dictionary / Index O opaque projector: Meaning and Definition of Find definitions for: opaque' projec'tor Pronunciation: [key] a machine for projecting opaque objects, as books, on a screen, by means of reflected light. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. opaque op art Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language