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Meaning of fermion

fer•mi•on

Pronunciation: (fûr'mē-on"), [key]
— n. Physics.
  1. any particle that obeys the exclusion principle and Fermi-Dirac statistics; fermions have spins that are half an odd integer: , , , . …
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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