ohmmeter

n. device for measuring resistance in an electrical current in ohms (Electricity)

An ohmmeter is an electrical instrument that measures electrical resistance, the opposition to the flow of an electric current. Microohmmeters make low resistance measurements. Megaohmmeters measure large values of resistance.The original design of an ohmmeter provided a small battery to apply a voltage to a resistance. It used a galvanometer to measure the electric current through the resistance. The scale of the galvanometer was marked in ohms, because the fixed voltage from the battery assured that as resistance decreased, the current through the meter would increase.
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Noun
1. a meter for measuring electrical resistance in ohms
(hypernym) meter

n. ohmmeter, device for measuring resistance in an electrical current in ohms (Electricity)

An instrument for measuring electrical resistance .