Dictionary
gamma ray
noun
Definition of GAMMA RAY
: a photon emitted spontaneously by a radioactive substance; also : a photon of higher energy than that of an X-ray
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First Known Use of GAMMA RAY
1903
Rhymes with GAMMA RAY
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GAMMA RAY Defined for Kids
gamma ray
noun gam·ma ray \ˈga-mə-\
Definition of GAMMA RAY for Kids
: a ray that is like an X-ray but of higher energy and that is given off especially by a radioactive substance
Medical Dictionary
gamma ray
noun
Medical Definition of GAMMA RAY
: a photon emitted spontaneously by a radioactive substance; also : a high-energy photon—usually used in plural
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