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exclusion principle

noun

, Physics.
  1. 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.


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

exclusion principle

/ ĭk-sklo̅o̅zhən /

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Word History and Origins

Origin of exclusion principle1

First recorded in 1925–30
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Example Sentences

Understanding the origin of Pauli’s exclusion principle would unlock explanations for all of these deep facts of quotidian life.

A quantum-mechanical law called the Pauli exclusion principle keeps matter from squishing itself into a point.

To avoid some inconsistencies associated with the exclusion principle, it already had been suggested that quarks might come in three “colors.”

These stars would be supported by the exclusion principle repulsion between neutrons and protons, rather than between electrons.

Dozens of others have already pointed out how strategically idiotic is Trump’s exclusion principle.

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