classical mechanics

noun 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).

Origin of classical mechanics

First recorded in 1930–35
Also called Newtonian mechanics.

Newtonian mechanics

noun Physics.
  1. classical mechanics.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for newtonian mechanics

Newtonian mechanics

noun
  1. (functioning as singular) a system of mechanics based on Newton's laws of motion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012