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[ik-sahy-ton, ek-si-ton] /ɪkˈsaɪ tɒn, ˈɛk sɪˌtɒn/
noun, Physics.
a localized, mobile excited state of a crystal, consisting of an electron and a hole bound together.
1935-40; excit(ed) or excit(ation) + -on1 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for exciton
  • Once on the surface, some of the exciton energy is channeled into desorption of neutral oxygen atoms at high speed.
British Dictionary definitions for exciton


a mobile neutral entity in a crystalline solid consisting of an excited electron bound to the hole produced by its excitation
Word Origin
C20: from excit(ation) + -on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for exciton

the combination of an electron and a positive hole (an empty electron state in a valence band), which is free to move through a nonmetallic crystal as a unit

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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