Definition of positron in English:

positron

Syllabification: pos·i·tron
Pronunciation: /ˈpäzəˌträn
 
/

noun

Physics
  • A subatomic particle with the same mass as an electron and a numerically equal but positive charge.
    More example sentences
    • The term accelerators most commonly refers to particle accelerators, devices for increasing the velocity of subatomic particles such as protons, electrons, and positrons.
    • The full scattering amplitude is the sum of all contributions from all possible loops of photons, electrons, positrons, and other available particles.
    • The decaying atoms emit positrons, which encounter electrons and are annihilated, releasing pairs of gamma rays.

Origin

1930s: from positive + -tron.

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