/ Dictionary / Index P photoallergic: Meaning and Definition of Find definitions for: pho•to•al•ler•gic Pronunciation: (fō"tō-u-lûr'jik), [key] — adj. photosensitive. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. photoaging photoanalyst Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language