Voltmeter

//ˈvoʊltˌmitɚ// noun

Definitions

Noun
  1. 1
    An instrument for measuring electric potential in volts.

    "Because most diesel failures can be traced to electrical faults, minor in themselves but often difficult to pin-point, any unscheduled halt during a trial run is often the signal for the frenzied unfolding of wiring diagrams and the appearance of an impressive array of voltmeters and circuit testers."

  2. 2
    meter that measures the potential difference between two points wordnet

Etymology

From volt + -meter.

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