farad

noun

far·​ad ˈfer-ˌad How to pronounce farad (audio)
-əd;
ˈfa-ˌrad,
-ˌrəd
: the unit of capacitance equal to the capacitance of a capacitor between whose plates there appears a potential of one volt when it is charged by one coulomb of electricity

Examples of farad in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
In measurements taken by the UCF researchers, when the flexible solar ribbon was exposed to simulated sunlight, the perovskite solar cell achieved a 10 percent energy conversion ratio and the supercapacitor had a specific capacitance of 1193 farads per gram (F/g). IEEE Spectrum, 15 Nov. 2016

Word History

Etymology

Michael Faraday

First Known Use

1873, in the meaning defined above

Time Traveler
The first known use of farad was in 1873

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Cite this Entry

“Farad.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/farad. Accessed 20 Aug. 2025.

Medical Definition

farad

noun
: the unit of capacitance equal to the capacitance of a capacitor between whose plates there appears a potential of one volt when it is charged by one coulomb of electricity
abbreviation f

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