adjective Physics.

of or relating to an oscillating system that is not undergoing simple harmonic motion.

Origin of anharmonic

an-1 + harmonic; modeled on French anharmonique Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for anharmonic



physics of or concerned with an oscillation whose frequency is not an integral factor or multiple of the base frequency
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