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Definition of phonon - 2 dictionary results

pho⋅non

[foh-non]
–noun Physics.
a quantum of sound or vibratory elastic energy, being the analogue of a photon of electromagnetic energy.

Origin:
1930–35; phon- + -on 1
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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pho·non   (fō'nŏn')   
n.  The quantum of acoustic or vibrational energy, considered a discrete particle and used especially in mathematical models to calculate thermal and vibrational properties of solids.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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