/ Dictionary / Index P photosensitize: Meaning and Definition of Find definitions for: pho•to•sen•si•tize Pronunciation: (fō"tu-sen'si-tīz"), [key] — -tized, -tiz•ing. to make (a material) photosensitive, as by the application of a photosensitive emulsion. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: photosensitize (Thesaurus) photosensitivity photosensor Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language