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
Recent Examples on the Web
Astronomers are trying to understand what caused a series of gamma ray bursts, or GRBs — the most powerful explosions in the universe.
—
Ashley Strickland, CNN Money, 22 Sep. 2025
Such isotopes emit three types of radiation: gamma rays, beta particles, and alpha particles.
—IEEE Spectrum, 25 Aug. 2025
The frozen shrimp situation stems from gamma rays which originated from the radioisotopic metal Cs-137.
—Laura Baisas, Popular Science, 21 Aug. 2025
Any deaths from gamma rays were due to those emitted during the explosion, not the radiations present afterward.
—Literary Hub, 20 Aug. 2025
See All Example Sentences for gamma ray
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.
Ashley Strickland, CNN Money, 22 Sep. 2025
Such isotopes emit three types of radiation: gamma rays, beta particles, and alpha particles.
—IEEE Spectrum, 25 Aug. 2025
The frozen shrimp situation stems from gamma rays which originated from the radioisotopic metal Cs-137.
—Laura Baisas, Popular Science, 21 Aug. 2025
Any deaths from gamma rays were due to those emitted during the explosion, not the radiations present afterward.
—Literary Hub, 20 Aug. 2025
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 29 Sep. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share