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

See Examples For:

anharmonic

These were found in the anharmonic ratio, a device leading to the liberation of synthetic geometry from metrical relations, and in involution, which yielded rigorous definitions of imaginaries.

From Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" by Various

Thus, the anharmonic ratio of any four elements of a form is equal to the anharmonic ratio of the corresponding four elements in any form projectively related to it.

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

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

For four harmonic points, therefore, the six values of the anharmonic ratio reduce to three, namely, 2, , and -1.

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