coulometer

cou·lo·me·ter

noun
\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

— cou·lo·met·ric \ˌkü-lə-ˈme-trik\ adjective

— cou·lo·met·ri·cal·ly \-tri-k(ə-)lē\ adverb

— cou·lom·e·try \kü-ˈlä-mə-trē\ noun

Origin of COULOMETER

alteration of coulombmeter, from coulomb + -meter

First Known Use: circa 1889