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strangeness

[streynj-nis] /ˈstreɪndʒ nɪs/
noun
1.
the quality or condition of being strange.
2.
Physics. a quantum number assigned the value −1 for one kind of quark, +1 for its antiquark, and 0 for all other quarks; the strangeness of a hadron is the sum of the values for the strangeness of its constituent quarks and antiquarks. Symbol: S.
Compare strange quark.
Origin of strangeness
1350-1400
1350-1400; Middle English; see strange, -ness
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for strangeness

strangeness

/ˈstreɪndʒnɪs/
noun
1.
the state or quality of being strange
2.
(physics) a property of certain elementary particles, characterized by a quantum number (strangeness number) conserved in strong and electromagnetic but not in weak interactions. It is associated with the presence of strange quarks
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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strangeness in Science
strangeness
  (strānj'nĭs)   
The property of containing a strange quark or antiquark. Strangeness is expressed in terms of an integer quantum number, -1 for each strange quark and +1 for each strange antiquark. Hadrons that possess strangeness are called strange. The total strangeness of a quantum system is unchanged by decay processes involving the strong or electromagnetic forces; however, decay through the weak force can change the total strangeness of the system. See also baryon number, isospin.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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12
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