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

The US writer, 46, known for It Ends With Us and Reminders of Him, said she has nearly finished radiotherapy and that earlier surgery was a success.

From BBC

They also aim to study how exercise-related effects interact with common cancer treatments such as chemotherapy and radiotherapy.

From Science Daily

Lucy, from Edinburgh, sought second opinions from doctors all over the world but the message was the same - she would need urgent surgery and radiotherapy which her baby would not survive.

From BBC

Most cancer treatments, including chemotherapy, radiotherapy and immunotherapy, are designed to attack and destroy cancer cells.

From Science Daily

Molly spent the next two weeks in intensive care before starting chemotherapy and radiotherapy, and was eventually able to go home and "stabilised" for 18 months.

From BBC