gamma radiation

noun

: radiation composed of gamma rays

Examples of gamma radiation in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
His team sealed dirt into jars and blasted them with sterilizing gamma radiation. — Siddhant Pusdekar, Quanta Magazine, 1 June 2026 When a mold’s takeover of an artifact must be stopped, there’s gamma radiation—pelting it with electromagnetic energy from radioactive decay to kill fungi and spores. — Elizabeth Anne Brown, Scientific American, 20 Jan. 2026 While radiation therapy remans an important part of cancer treatment, there is not a single machine in Haiti, where the last clinic with a gamma radiation device closed more than 20 years ago. — Miami Herald, 29 July 2025 Although GRBs start with dazzling flashes of gamma radiation, their afterglows span multiple energy wavelengths. — Andrew Paul, Popular Science, 30 July 2025 See All Example Sentences for gamma radiation

Word History

First Known Use

1904, in the meaning defined above

Time Traveler
The first known use of gamma radiation was in 1904

Rhymes for gamma radiation

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Browse Nearby Words

Gamma Pegasi
gamma radiation
gamma ray
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Cite this Entry

“Gamma radiation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gamma%20radiation. Accessed 8 Jul. 2026.

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Kids Definition

gamma radiation

noun
: radiation made up of gamma rays

Medical Definition

gamma radiation

noun
: radiation that is composed of gamma rays and is used in cancer radiotherapy

More from Merriam-Webster on gamma radiation

Britannica.com: Encyclopedia article about gamma radiation

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