Meaning of correspondence principle

correspond'ence prin"ciple

Pronunciation: [key]
— Physics. Physics.
  1. the principle that the laws of quantum mechanics and of any new theory that may be developed reduce to the laws of Newtonian mechanics and electromagnetic theory when applied to systems in which Planck's constant can be regarded as negligible, wavelengths are comparatively small, dimensions are relatively large, etc. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.