coulometer

noun

cou·​lo·​me·​ter kü-ˈlä-mə-tər How to pronounce coulometer (audio) ˈkü-lə-ˌmē-tər How to pronounce coulometer (audio)
: an instrument of chemical analysis that determines the amount of a substance released in electrolysis by measurement of the quantity of electricity used
coulometric adjective
coulometrically adverb
coulometry noun

Word History

Etymology

alteration of coulombmeter, from coulomb + -meter

First Known Use

circa 1889, in the meaning defined above

Time Traveler
The first known use of coulometer was circa 1889

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Cite this Entry

“Coulometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coulometer. Accessed 1 Mar. 2025.

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