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beta particle

/beɪdə ˌpɑrdəkəl/
IPA guide

Other forms: beta particles

Definitions of beta particle
  1. noun
    a high-speed electron or positron emitted in the decay of a radioactive isotope
    see moresee less
    type of:
    particle, subatomic particle
    a body having finite mass and internal structure but negligible dimensions
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