[ fur-mee-on ]
/ ˈfɜr miˌɒn /
Save This Word!
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, …
QUIZ YOURSELF ON AFFECT VS. EFFECT!
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
OTHER WORDS FROM fermionfer·mi·on·ic, adjective
Words nearby fermion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
Example sentences from the Web for fermion
It involves a problem called the Fermi-Hubbard model, which describes the behavior of a class of subatomic particles known as fermions—a group that includes electrons—as they hop around within a solid.U.K. startup’s breakthrough could aid quantum computers in the hunt for exotic materials|Jeremy Kahn|December 10, 2020|Fortune
British Dictionary definitions for fermion
/ (ˈfɜːmɪˌɒn) /
any of a group of elementary particles, such as a nucleon, that has half-integral spin and obeys Fermi-Dirac statisticsCompare boson
Word Origin for fermion
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
Scientific definitions for fermion
[ fûr′mē-ŏn′, fĕr′- ]
An elementary or composite particle, such as an electron, quark, or proton, whose spin is an integer multiple of 12. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.