n. [ Electro- + -meter: cf. F. électromètre. ] (Physics) An instrument for measuring the quantity or intensity of electricity; also, sometimes, and less properly, applied to an instrument which indicates the presence of electricity (usually called an electroscope). [ 1913 Webster ]

Balance electrometer. See under Balance.

n. [ Thermo- + electrometer. ] (Physics) An instrument for measuring the strength of an electric current in the heat which it produces, or for determining the heat developed by such a current. [ 1913 Webster ]

. (Elec.) A torsion balance used for measuring electric attraction or repulsion. [ Webster 1913 Suppl. ]

n. An instrument for the exact measurement of electric currents. [ 1913 Webster ]