classical mechanics: Meaning and Definition of

clas'sical mechan'ics

Pronunciation: [key]
— Physics. Physics.
  1. the branch of mechanics that is based on Newton's laws of motion and that is applicable to systems that are so large that Planck's constant can be regarded as negligibly small (distinguished from quantum mechanics). Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.