(n.) An instrument for measuring the intensity of magnetic forces; also, less frequently, an instrument for determining any of the terrestrial magnetic elements, as the dip and declination.

VOM VTVM ammeter ampere-hour meter coulometer dynamometer expansion ammeter faradmeter galvanometer hysteresis meter magnetometer megohmmeter mhometer milliammeter moving-coil meter ohmmeter potentiometer thermoammeter thermocouple thermoelectrometer variometer voltameter voltmeter