Balance

[1] The state in which weight is evenly distributed.
[2] The action of applying weights or drilling holes in something to establish even weight distribution so that vibration is reduced.
[3] Adjustment of sources of sound in studios so that the final transmission adheres to an artistic standard.
[4] Said to be obtained in bridge measurements when the various impedances forming the arms of the bridge have been adjusted, so that no current flows through the detector.
See also aerodynamic balance, balance shaft, brake balance, counter balance, crankshaft counter-balance, current balance, dynamic balance, harmonic balancer, heat balance, kinetic balance, off-car balance, on-car balance, spool balance valve, static balance, steering wheel balance, tire balance, wheel balancer