/ Dictionary / Index R radiosensitizer: Meaning and Definition of Find definitions for: ra•di•o•sen•si•tiz•er Pronunciation: (rā"dē-ō-sen'si-tī"zur), [key] — n. a substance, as a drug, that enhances the sensitivity of tissues or cells to radiation therapy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. radiosensitive radio shack Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language