exclusion principle
nounPhysics.
the principle that in any system described by quantum mechanics no two identical particles having spin equal to half an odd integer can be in the same quantum state: first postulated for the electrons in atoms.
Origin of exclusion principle
1First recorded in 1925–30
- Also called Pauli exclusion principle.
- Compare fermion.
Words Nearby exclusion principle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for exclusion principle
exclusion principle
noun
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 exclusion principle
exclusion principle
[ ĭk-sklōō′zhən ]
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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