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anharmonic |
1 definition found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Anharmonic \An`har*mon"ic\, a. [F. anharmonique fr Gr 'an priv. + ? harmonic.] (Math.) Not harmonic. {The anharmonic function} or {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.