1 exclusion principle | Definition of exclusion principle
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exclusion principle

noun

Definition of exclusion principle

: a principle in physics: no two particles (such as electrons) in an atom or molecule can have the same set of quantum numbers

— called also Pauli exclusion principle

First Known Use of exclusion principle

1926, in the meaning defined above

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More from Merriam-Webster on exclusion principle

Britannica.com: Encyclopedia article about exclusion principle

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