gamma radiation

noun

: radiation composed of gamma rays

Examples of gamma radiation in a Sentence

Recent Examples on the Web
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The highly effective treatment involves sterilizing screwworm pupae -- the immobile stage of the screwworm before metamorphosis -- by exposing them to gamma radiation and then releasing them into the wild to mate with fertile females. Julia Jacobo, ABC News, 11 June 2026 This was done using Sterile Fly Technique, which involves breeding millions of male flies in specialized facilities, sterilizing them with gamma radiation, then dropping them from the air like bombs. Beth Mole, ArsTechnica, 9 June 2026 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 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

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Cite this Entry

“Gamma radiation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gamma%20radiation. Accessed 18 Jun. 2026.

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

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