Gamma Rays |
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| Gamma Radiation; Radiation, Gamma; Gamma Radiations; Gamma Ray; Radiations, Gamma; Ray, Gamma; Rays, Gamma | |
| Very powerful and penetrating, high-energy electromagnetic radiation of shorter wavelength than that of x-rays. They are emitted by a decaying nucleus, usually between 0.01 and 10 MeV. They are also called nuclear x-rays. | |