radiotherapy

American  

[rey-dee-oh-ther-uh-pee] / ˌreɪ di oʊˈθɛr ə pi /

noun

Medicine/Medical.

1. treatment of disease by means of x-rays or of radioactive substances.

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radiotherapy British  

/ ˌreɪdɪəʊˈθɛrəpɪ, ˌreɪdɪəʊˌθɛrəˈpjuːtɪk /

noun

1. the treatment of disease, esp cancer, by means of alpha or beta particles emitted from an implanted or ingested radioisotope, or by means of a beam of high-energy radiation Compare chemotherapy

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Other Word Forms

• radiotherapeutic adjective
• radiotherapeutically adverb
• radiotherapist noun

Etymology

Origin of radiotherapy

First recorded in 1900–05; radio- + therapy

Example Sentences

As the cancer had not spread, the father of three did not need chemotherapy or radiotherapy and was back working within six months.

From BBC

As part of her treatment, she needed radiotherapy followed by an operation to remove two muscles from her right thigh, which left her with minimal movement.

From BBC

A woman diagnosed with anal cancer has said she thought she was going to die after being left in agony following pelvic radiotherapy treatment.

From BBC

It was through those connections she discovered vorasidenib, a less aggressive treatment used for patients not in need of immediate chemotherapy or radiotherapy following surgery.

From BBC

"Despite subsequent radiotherapy sessions, my oncology team have now told me there is nothing further they can do," she wrote.

From BBC