Definition of “beta particle” - English Dictionary

british dictionary

“beta particle” in British English

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beta particlenoun [ C ]

uk /ˈbiː.tə ˌpɑː.tɪ.kəl/ us /ˈbeɪ.t̬ə ˌpɑːr.t̬ə.kəl/ specialized

Examples from literature

  • That was the dangerous kind, because both beta particles and gamma rays could penetrate clothing and skin. 
  • The beta particles emanating from radium were soon identified with the electrons of the cathode ray. 
  • They are much larger than beta particles, and have less penetrative power. 

(Definition of “beta particle” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“beta particle” in American English

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beta particlenoun [ C ]

/ˈbeɪ·t̬ə ˌpɑr·t̬ɪ·kəl/
beta (+) particle also beta (–) particle chemistry, physics

an extremely small piece of matter with a positive or negative electric charge, produced when an atom is broken down. A beta (+) particle is the same as a positron; a beta (–) particle is an electron.

(Definition of “beta particle” from the Cambridge Academic Content Dictionary © Cambridge University Press)