noun
: an instrument used for measuring alternating currents and consisting of a rectifier in conjunction with a direct-current meter whose reading gives the value of the rectified alternating current
noun
: an instrument used for measuring alternating currents and consisting of a rectifier in conjunction with a direct-current meter whose reading gives the value of the rectified alternating current
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012