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fermion

[fur-mee-on] /ˈfɜr miˌɒn/
noun, Physics.
1.
any particle that obeys the exclusion principle and Fermi-Dirac statistics; fermions have spins that are half an odd integer: 1/2, 3/2, 5/2, ….
Origin
1945-1950
1945-50; fermi + (mes)on
Related forms
fermionic, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for fermionic
  • The discovery of a new form of matter, fermionic condensate, has been announced.
British Dictionary definitions for fermionic

fermion

/ˈfɜːmɪˌɒn/
noun
1.
any of a group of elementary particles, such as a nucleon, that has half-integral spin and obeys Fermi-Dirac statistics Compare boson
Word Origin
C20: named after Enrico Fermi; see -on
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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fermionic in Science
fermion
  (fûr'mē-ŏn', fěr'-)   
An elementary or composite particle, such as an electron, quark, or proton, whose spin is an integer multiple of 1/2 . Fermions act on each other by exchanging bosons and are subject to the Pauli exclusion principle, which requires that no two fermions be in the same quantum state. Fermions are named after the physicist Enrico Fermi, who along with Paul Dirac developed quantum statistical models of their behavior. Compare boson.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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