/ Dictionary / Index P photopia: Meaning and Definition of Find definitions for: pho•to•pi•a Pronunciation: (fō-tō'pē-u), [key] — n. Ophthalm. vision in bright light (opposed to scotopia). Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. photophosphorylation photoplay Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language