phonon Hear it!

phonon definition

pho·non (fō′nän′)

noun

Physics a quantum of vibrational or sound energy in a crystal lattice or solid: often characterized as being heat energy

Etymology: phon- + -on, as in photon

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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