Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An elementary particle having the same mass and magnitude of charge as an electron but exhibiting a positive charge; the antiparticle of the electron.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics The antimatter equivalent of an electron, having the same mass but a positive charge

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an elementary particle with positive charge; interaction of a positron and an electron results in annihilation

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[posi(tive) + (elec)tron.]

Examples

  • The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.

    I’m Working on That

  • The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.

    I’m Working on That

  • The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.

    I’m Working on That

  • The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.

    I’m Working on That

  • The positron is slowed down by the water and destroyed together with an electron (matter meets antimatter), whereupon two photons (light particles) are created.

    Press Release: The 1995 Nobel Prize in Physics

  • Referring to the so-called positron, the positive particle regarded as the polar opposite of the negative electron, he remarks: 'A positron is a hole from which an electron has been removed; it is a bung-hole which would be evened up with its surroundings if an electron were inserted. ...

    Man or Matter

  • When people are suffering with major depression, research has shown that a type of nuclear medicine scan called positron emission tomography PET can often reveal specific regions of their brains with decreased metabolic activity—a reduced flow of chemical messengers between nerve cells.

    The 7

  • When people are suffering with major depression, research has shown that a type of nuclear medicine scan called positron emission tomography PET can often reveal specific regions of their brains with decreased metabolic activity—a reduced flow of chemical messengers between nerve cells.

    The 7

  • A positron is the antimatter equivalent of an electron, and perhaps the easiest anti-particle to manufacture and store.

    Wired Top Stories

  • A positron is the antimatter equivalent of an electron, and perhaps the easiest anti-particle to manufacture and store.

    Wired Top Stories

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