proton

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Pronunciation[change]

  • (UK) IPA: /ˈprəʊ.tɒn/
  • (US) IPA: /ˈproʊ.tɑːn/
  • (file)

Noun[change]

Singular
proton

Plural
protons

  1. (countable) (physics) A proton is a particle that is part of the nucleus of an atom and has a positive charge.
    Scientists think that a proton is made up of quarks.

See also[change]