[See VOLTA- and -METER.] An instrument used for the quantitative measurement of electricity by means of the results of electrolysis.

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1836.  Brande, Chem. (ed. 4), 385. When the quantity of products was examined by the voltameter, the oxygen … was always in the same proportion as from water.

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1866.  R. M. Ferguson, Electr. (1870), 140. To measure one or other of these is the object of a galvanometer or voltameter.

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1881.  S. P. Thompson, Electr. & Magnetism, 179. The voltameter gives us the ‘time integral’ of the current.

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  attrib.  1844.  Noad, Electricity (ed. 2), 222. One equivalent of lead was reduced in the voltameter tube.

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