/ Dictionary / Index P photocoagulation: Meaning and Definition of Find definitions for: pho•to•co•ag•u•la•tion Pronunciation: (fō"tō-kō-ag"yu-lā'shun), [key] — n. a surgical technique using an intense beam of light from a laser or a xenon-arc bulb to seal blood vessels or coagulate tissue, used primarily in ophthalmology to repair detached retinas or to treat certain kinds of retinopathy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: photocoagulation (Thesaurus) photochronograph photocompose Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language