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 anelectron , having the samemass but apositive 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
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Examples
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The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.
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The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.
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The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.
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The anti-particle of a negatively charged electron, for example, has a positive charge and is called a positron.
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The positron is slowed down by the water and destroyed together with an electron (matter meets antimatter), whereupon two photons (light particles) are created.
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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. ...
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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.
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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.
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A positron is the antimatter equivalent of an electron, and perhaps the easiest anti-particle to manufacture and store.
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A positron is the antimatter equivalent of an electron, and perhaps the easiest anti-particle to manufacture and store.
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