/ Dictionary / Index O optical effects: Meaning and Definition of Find definitions for: op'tical effects' Pronunciation: [key] — Motion Pictures, Television. Motion Pictures,Television. special visual effects, as the wipe or dissolve, created in the camera or esp. in a film laboratory by technicians using complex optical and electronic equipment. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. optical double star optical fiber Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language