(mathematics) The relation of three quantities in harmonic progression, with the second being a harmonic mean between the first and third, as in the three numbers 2, 3, and 6.

plural of harmonic proportion

plural of natural harmonic

(music, stringed instruments) a harmonic produced by lightly touching the string at the point where the notated pitch is played, but producing a different pitch

plural of false harmonic

(music) a sound produced by lightly touching the string as opposed to pressing it against the fingerboard, usually with the actual pitch notated

plural of semi-harmonic

plural of harmonic balancer

A device connected to the crankshaft of an engine to reduce torsional vibration and to serve as a pulley for drive belts.

plural of harmonic tremor