gamma ray

noun

Definition of gamma ray

  1. :  a photon emitted spontaneously by a radioactive substance; also :  a photon of higher energy than that of an X-ray

1903

First Known Use of gamma ray

1903


GAMMA RAY Defined for Kids

gamma ray

noun gam·ma ray \ˈga-mə-\

Definition of gamma ray for Students

  1. :  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

  1. :  a photon emitted spontaneously by a radioactive substance; also :  a high-energy photon—usually used in plural


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