positron

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noun pos·i·tron \ˈpä-zə-ˌträn\

Definition of positron

  1. :  a positively charged particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of the electron —called also antielectron

Origin and Etymology of positron

positive + -tron (as in electron)


First Known Use: 1933


POSITRON Defined for English Language Learners

positron

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noun pos·i·tron \ˈpä-zə-ˌträn\

Definition of positron for English Language Learners

  • physics : a very small particle of matter that has a positive charge of electricity and that travels around the nucleus of an atom


Medical Dictionary

positron

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noun pos·i·tron \ˈpäz-ə-ˌträn\

Medical Definition of positron

  1. :  a positively charged particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of the electron—called also positive electron


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