Hypertext Webster Gateway: "voltmeter"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Voltmeter \Volt"me`ter\, n. [2d volt + -meter.] (elec.)
An instrument for measuring in volts the differences of
potential between different points of an electrical circuit.
From WordNet (r) 1.7 (wn)
voltmeter
n : meter that measures the potential difference between two
points
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