| Share
 

Dictionary


exclu'sion prin"ciple



Physics.
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. Also called Pauli exclusion principle. Cf. fermion.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

exclusionismexclusive
See also:

 

Related Content