Definitions for "Ammeter"
A contraction of amperometer or ampèremeter.
An instrument that indicates whether the battery is being charged adequately by the alternator. If the ammeter indicates discharge, the alternator is not producing enough power to keep the battery charged with the current demand. If it indicated a charge, then the battery is being charged by the alternator. It should normally be close to zero.
A meter used to measure current.
a galvanometer with a low resistance in parallel
Keywords:  impedance, low, device
a very low impedance device
a necessary tool in checking a charging system