/ Dictionary / Index P photoscan: Meaning and Definition of Find definitions for: pho•to•scan Pronunciation: (fō'tu-skan"), [key] — -scanned, -scan•ning. to study the distribution of a radioactive isotope or radiopaque dye in (a body organ or part) through the use of x-rays. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. photoresist Photo-Secession 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