gamma ray
noun
: a photon emitted spontaneously by a radioactive substance
also
: a photon of higher energy than that of an X-ray
Examples of gamma ray in a Sentence
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Blasts of gamma rays can trap positive charges in the oxide, degrading the device’s performance and causing errors.
—
Katherine Bourzac, IEEE Spectrum, 2 Apr. 2026
They will also be outfitted with active dosimeters, devices that measure exposure to radiation, such as X-rays or gamma rays.
—Leonard David, Space.com, 31 Mar. 2026
In theory, yes, because the radiation emitted in the last few milliseconds would be in the form of extremely high-energy gamma rays.
—Phil Plait, Scientific American, 27 Mar. 2026
The 13-foot-tall, 13-foot-wide (four-meter) cylinder uses ultra-pure lead to block gamma rays and high-density polyethylene to absorb neutrons.
—Georgina Jedikovska, Interesting Engineering, 18 Mar. 2026
See All Example Sentences for gamma ray
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Katherine Bourzac, IEEE Spectrum, 2 Apr. 2026
They will also be outfitted with active dosimeters, devices that measure exposure to radiation, such as X-rays or gamma rays.
—Leonard David, Space.com, 31 Mar. 2026
In theory, yes, because the radiation emitted in the last few milliseconds would be in the form of extremely high-energy gamma rays.
—Phil Plait, Scientific American, 27 Mar. 2026
The 13-foot-tall, 13-foot-wide (four-meter) cylinder uses ultra-pure lead to block gamma rays and high-density polyethylene to absorb neutrons.
—Georgina Jedikovska, Interesting Engineering, 18 Mar. 2026
See All Example Sentences for gamma ray
Cite this Entry
“Gamma ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gamma%20ray. Accessed 11 Apr. 2026.
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