What is "voltameter"

Voltameter \Vol*tam"e*ter\, n. [Voltaic + -meter.] (Physics) An instrument for measuring the voltaic electricity passing through it, by its effect in decomposing water or some other chemical compound acting as an electrolyte.

n. An instrument used to measure the quantity of electric charge.

A voltameter or coulometer is a scientific instrument used for measuring quantity of electricity ( electric charge). The SI unit of quantity of electricity is the coulomb.

The voltameter should not be confused with a voltmeter, which measures electric potential. The SI unit for electric potential is the volt.