/ Dictionary / Index P photogene: Meaning and Definition of Find definitions for: pho•to•gene Pronunciation: (fō'tu-jēn"), [key] — n. Ophthalm. an afterimage on the retina. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. photogen photogenic Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language