Definify.com

Webster 1913 Edition

Anharmonic

Anˊhar-mon′ic

,

Adj.

[F.

anharmonique

, fr. Gr.

ἀν

priv. + [GREEK] harmonic.]

(Math.)

Not harmonic.

The

anharmonic function

or

anharmonic ratio

of four points abcd on a straight line is

the quantity

(

ac/ad

):(

bc/bd

)

, where the segments are to be regarded as plus or minus, according to the order of the letters.