coulometer

noun
cou·lo·me·ter | \ kü-ˈlä-mə-tər , ˈkü-lə-ˌmē-tər \

Definition of coulometer 

: an instrument of chemical analysis that determines the amount of a substance released in electrolysis by measurement of the quantity of electricity used

Other words from coulometer

coulometric \ˌkü-lə-ˈme-trik \ adjective
coulometrically \ˌkü-lə-ˈme-tri-k(ə-)lē \ adverb
coulometry \kü-ˈlä-mə-trē \ noun

First Known Use of coulometer

circa 1889, in the meaning defined above

History and Etymology for coulometer

alteration of coulombmeter, from coulomb + -meter

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The first known use of coulometer was circa 1889

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