One who, or that which, equalizes anything.
A device, as a bar, for operating two brakes, esp. a pair of hub brakes for an automobile, with equal force.
(Elec.) Any device for equalizing the pull of electromagnets; also, a conductor of low resistance joining the armature ends of the series field coils of dynamos connected in parallel.
(Aeronautics) A sliding panel to preserve the lateral stability of an aeroplane.
(Electronics) A device or circuit within a sound-reproducing system that reproduces the original frequency distribution of the sound before recording by compensating for inequialities in the frequency response of the system.