voltmeter

[ vohlt-mee-ter ]
/ ˈvoʊltˌmi tər /

noun Electricity.

a calibrated instrument for measuring the potential difference between two points.

Origin of voltmeter

First recorded in 1880–85; volt1 + -meter

Example sentences from the Web for voltmeter

British Dictionary definitions for voltmeter

voltmeter
/ (ˈvəʊltˌmiːtə) /

noun

an instrument for measuring potential difference or electromotive force

Scientific definitions for voltmeter

voltmeter
[ vōltmē′tər ]

An instrument used for measuring the difference in voltage between two points in an electric circuit. Voltmeters typically make use of an ammeter that measures current flow across a known resistance inside the voltmeter; direct-current voltages can then be determined by Ohm's law. Digital voltmeters employ A/D converters to provide the numerical value of the voltage displayed. Compare ohmmeter.