/ Dictionary / Index P photic: Meaning and Definition of Find definitions for: pho•tic Pronunciation: (fō'tik), [key] — adj. of or pertaining to light. pertaining to the generation of light by organisms, or their excitation by means of light. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: photic (Thesaurus) photalgia photics Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language