gamma knife

British  

noun

1. an machine that uses radiation with extreme accuracy to destroy abnormal tissue, esp in the brain

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Example Sentences

She has undergone emergency surgery to remove four, but is having treatment called gamma knife radio surgery - in which targeted beams of radiation are focussed on tumours - to remove the remaining seven.

From BBC • Feb. 6, 2021

Four magnetic resonance scanners, a linear accelerator and gamma knife surgery equipment, kept in the basement, were now worthless.

From New York Times • Nov. 10, 2012

Sounds like science fiction, but research shows that an instrument called a gamma knife can safely--and bloodlessly--shrink acoustic neuromas, one of the most common forms of benign brain tumor.

From Time Magazine Archive

Fortunately, there was a life-saving alternative: he could undergo "gamma knife" radiation.

From Time Magazine Archive