/ Dictionary / Index P photoreception: Meaning and Definition of Find definitions for: pho•to•re•cep•tion Pronunciation: (fō"tō-ri-sep'shun), [key] — n. the physiological perception of light. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. photorealism photoreceptor Related Content Daily Word Quiz: tactful Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language