![](https://webarchive.library.unt.edu/eot2008/20081104130838im_/http://www.cancer.gov/images/spacer.gif) |
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(RAY-dee-oh-SEN-sih-tih-ZAY-shun)
![](https://webarchive.library.unt.edu/eot2008/20081104130838im_/http://www.cancer.gov/images/spacer.gif)
| The use of a drug that makes tumor cells more sensitive to radiation therapy. |
Previous Definitions: | radiologist, radiology, radionuclide, radionuclide scanning, radiopharmaceutical | Next Definitions: | radiosensitizer, radiosurgery, radiotherapy, radon, Raftilose Synergy 1 |
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![](https://webarchive.library.unt.edu/eot2008/20081104130838im_/http://www.cancer.gov/images/spacer.gif) |