radiotherapist

/ˌreɪdioʊˈθɛrəpɪst/
noun
  1. A medical professional who treats diseases, especially cancer, using radiation (such as X-rays or other high-energy rays).
    • The radiotherapist explained the treatment plan to the patient before starting the sessions.
    • After years of study, she became a certified radiotherapist at the city hospital.
    • My uncle visits his radiotherapist every week for targeted radiation therapy.