pion

/ˌpaɪˈɑn/
IPA guide

Other forms: pions

Definitions of pion
  1. noun
    a meson involved in holding the nucleus together; produced as the result of high-energy particle collision
    synonyms: pi-meson
    see moresee less
    type of:
    meson, mesotron
    an elementary particle responsible for the forces in the atomic nucleus; a hadron with a baryon number of 0
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