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

1. See Pauli exclusion principle

exclusion principle

/ ĭk-sklo̅o̅′zhən /

1. See Pauli exclusion principle

Word History and Origins

Origin of exclusion principle¹

First recorded in 1925–30