Radiation

Cancer 101: Cancer Explained

Medical Definition of Radiation

Radiation: 1. Rays of energy. Gamma rays and X-rays are two of the types of energy waves often used in medicine. 2. The use of energy waves to diagnose or treat disease. See also: Irradiation.


Quick GuideUnderstanding Cancer: Metastasis, Stages of Cancer, and More

Understanding Cancer: Metastasis, Stages of Cancer, and More

Subscribe to MedicineNet's Cancer Report Newsletter

By clicking Submit, I agree to the MedicineNet's Terms & Conditions & Privacy Policy and understand that I may opt out of MedicineNet's subscriptions at any time.

Reviewed on 6/9/2016

Health Solutions From Our Sponsors