ki·​lo·​volt ˈki-lə-ˌvōlt How to pronounce kilovolt (audio)
: a unit of potential difference equal to 1000 volts

Examples of kilovolt in a Sentence

Recent Examples on the Web Transformers operating at 750 kilovolts, such as the replacements needed for the transmission backbone of Ukraine’s electric grid, are produced in volume in only a few countries; these include China, India, Japan, and South Korea. Thomas Popik, Foreign Affairs, 3 Feb. 2023 Some sections have been upgraded to 230 kilovolt, but large sections remain. Nathaniel Herz, Northern Journal, Anchorage Daily News, 28 Apr. 2023 The Railbelt transmission grid consists primarily of 115 kilovolt capacity with little to no redundancy. Nathaniel Herz, Northern Journal, Anchorage Daily News, 28 Apr. 2023 And in the 1930s came the first circular particle accelerator—a palm-size device invented by Ernest Lawrence called the cyclotron, which could accelerate protons to about 80 kilovolts. Chandrashekhar Joshi, Scientific American, 1 July 2021 An article in RadioGraphics has highlighted some exciting CT techniques that do this, such as low-kilovolt imaging, which the authors describe as one of the most effective means of reducing the radiation dose for children. Morris Panner, Forbes, 4 May 2021 Operating at voltages of 300 kilovolts, more than 2500 times stronger than electricity from a U.S. wall socket, the machine requires a bulky transformer and thick, heavily insulated cabling. Eric Hand, Science | AAAS, 23 Jan. 2020 For safety and other reasons, third-rail systems typically operate at 750 volts DC, a much lower voltage than overhead lines, which in Britain run at 25 kilovolts AC. The Economist, 21 Nov. 2019 Motors and Propellers Motors are rated in kilovolts, or rpm generated per volt. Trevor Bauer, Popular Mechanics, 23 Aug. 2018 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'kilovolt.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary

First Known Use

circa 1898, in the meaning defined above

Time Traveler
The first known use of kilovolt was circa 1898

Dictionary Entries Near kilovolt

Cite this Entry

“Kilovolt.” Dictionary, Merriam-Webster, Accessed 4 Mar. 2024.

Kids Definition


ki·​lo·​volt ˈkē-lə-ˌvōlt How to pronounce kilovolt (audio)
: 1000 volts

Medical Definition


ki·​lo·​volt -ˌvōlt How to pronounce kilovolt (audio)
: a unit of potential difference equal to 1000 volts
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