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charmonium

 - 2 dictionary results

char⋅mo⋅ni⋅um

  [chahr-moh-nee-uhm]
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–noun Physics.
any meson composed of a charmed quark and a charmed antiquark.
Origin:
1970–75; charm 1 + -onium, prob. extracted from positronium
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To charmonium
char·mo·ni·um   (chär-mō'nē-əm)   
n.  Any of various elementary particles consisting of a charm quark and an antiquark.

[From charm.]
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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