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Positron

//ˈpɑ.zɪ.tɹɑn// noun

Definitions

Noun
  1. 1
    The antimatter equivalent of an electron, having the same mass but a positive charge. particle

    "The notion of a positron weapon remains the stuff of science fiction."

  2. 2
    an elementary particle with positive charge; interaction of a positron and an electron results in annihilation wordnet

Etymology

From positive + -tron (electron). Coined by American physicist Carl Anderson in 1932 to replace the earlier term antielectron.

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