Meaning of “gamma ray” in the English Dictionary

british dictionary

"gamma ray" in British English

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gamma raynoun [ C usually plural ]

uk /ˈɡæm.ə ˌreɪ/ us /ˈɡæm.ə ˌreɪ/

Examples from literature

  • Polonium contains especially alpha rays and a few gamma rays. In the case of uranium, the alpha rays have extremely slight penetrating power, and cannot even impress photographic plates. 
  • That was the dangerous kind, because both beta particles and gamma rays could penetrate clothing and skin. 

(Definition of “gamma ray” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

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