Try Our Apps


Words You've Been Using Wrong

Pauli exclusion principle

noun, Physics.
Origin of Pauli exclusion principle
First recorded in 1925-30; named after W. Pauli Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
British Dictionary definitions for Pauli exclusion principle

Pauli exclusion principle

(physics) the principle that two identical fermions cannot occupy the same quantum state in a body such as an atom Sometimes shortened to exclusion principle
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
Cite This Source
Pauli exclusion principle in Science
Pauli exclusion principle
  (pô'lē, pou'-)   
The principle that two fermions of a given type, such as electrons, protons, or neutrons, cannot occupy the same quantum state. It does not apply to bosons. This principle plays a key role in the electron orbital structure of atoms, since it prevents more than two electrons from occupying any given orbital (two are allowed, since they may have opposite spin, and thus be in different quantum states). See also orbital, degeneracy pressure.

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

Word of the Day

Nearby words for pauli exclusion principle

Word Value for Pauli

Scrabble Words With Friends