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virtual particle
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virtual particle
noun Physics.
an elementary particle of transitory existence that does not appear as a free particle in a particular situation but that can transmit a force from one particle to another.
Origin:
1970–75
1970–75
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
Cite This Source
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Virtual particle
is always a great word to know.
So is inertia. Does it mean:
| the heat absorbed by a unit mass of a solid at its melting point that completely converts the solid to a liquid at the same temperature |
| the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force |
American Heritage
Science Dictionary
| virtual particle
A short-lived subatomic particle whose existence briefly violates the principle of conservation of energy. The uncertainty principle of quantum mechanics allows violations of conservation of energy for short periods, meaning that even a physical system with zero energy can spontaneously produce energetic particles. The more energy a virtual particle has, the shorter its existence. Interactions between normal particles and virtual particles play a crucial role in quantum field theory analyses of interactions between real particles. See also Casimir effect, Feynman diagram, vacuum fluctuation. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Word Dynamo Rating For Virtual particle
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