ra·​dio·​sur·​gery ˌrā-dē-ō-ˈsərj-rē How to pronounce radiosurgery (audio)
: surgery using precisely targeted radiation to destroy tissue without cutting

Examples of radiosurgery in a Sentence

Recent Examples on the Web At issue is a study that was begun in 1998 to determine whether a single treatment of stereotactic radiosurgery, also known as targeted irradiation, would prolong life for outpatients with metastasizing brain tumors. Ed Silverman, STAT, 16 Oct. 2021 Patients who are too old or unhealthy for surgery and for whom medications have failed have less invasive options, such as radiosurgery, a form of focused radiation. Katrina Firlik, Discover Magazine, 7 Apr. 2014 Research Medical is not the only local institution that offers stereotactic radiosurgery, though. Andy Marso,, 23 June 2017 The University of Kansas Health System performs advanced radiosurgery with a device called the Novalis Tx, and the Sarah Cannon Cancer Institute at Menorah Medical Center uses a device called CyberKnife. Andy Marso,, 23 June 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'radiosurgery.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of radiosurgery was in 1933

Dictionary Entries Near radiosurgery

Cite this Entry

“Radiosurgery.” Dictionary, Merriam-Webster, Accessed 28 Sep. 2023.

Medical Definition


ra·​dio·​sur·​gery -ˈsərj-(ə-)rē How to pronounce radiosurgery (audio)
plural radiosurgeries
: surgery by means of a radio knife
radiosurgical adjective
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