anharmonic

American  

[an-hahr-mon-ik] / ˌæn hɑrˈmɒn ɪk /

adjective

Physics.

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

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anharmonic British  

/ ˌænhɑːˈmɒnɪk /

adjective

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

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Etymology

Origin of anharmonic

an- ¹ + harmonic; modeled on French anharmonique

Example Sentences

To complete the theory of geometry as we have it to-day it only remained to free it from its dependence on the semimetrical basis of the anharmonic ratio.

From An Elementary Course in Synthetic Projective Geometry by Lehmer, Derrick Norman

The locus of points from which four points in a plane are seen along four rays of constant anharmonic ratio is a conic through the four points.

From An Elementary Course in Synthetic Projective Geometry by Lehmer, Derrick Norman

On any convenient line through A take two points B' and D' such that AB'/AD' is equal to the given anharmonic ratio.

From An Elementary Course in Synthetic Projective Geometry by Lehmer, Derrick Norman

Incidentally we see that if an interchange of any two points in an anharmonic ratio does not change its value, then the four points are harmonic.

From An Elementary Course in Synthetic Projective Geometry by Lehmer, Derrick Norman

The anharmonic ratio of four points is such an invariant, since it remains unaltered under all projective transformations.

From An Elementary Course in Synthetic Projective Geometry by Lehmer, Derrick Norman