fuel cell

noun

: a device that continuously changes the chemical energy of a fuel (such as hydrogen) and an oxidant directly into electrical energy

Examples of fuel cell in a Sentence

Recent Examples on the Web
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Developers also say that the tower would produce its own electricity — 30 megawatts — on site with natural gas fuel cells, off the Evergy grid with diesel generators as backup, and would not affect electric bills. Chris Higgins, Kansas City Star, 21 July 2026 Compared to cooler-running fuel cells used in cars or small drones, these advanced systems unlock the necessary muscle for large aircraft while reducing the size and weight of the heavy cooling equipment needed to keep hydrogen powertrains stable. Mrigakshi Dixit, Interesting Engineering, 20 July 2026 For more than a decade, the Clean Vehicle Rebate Project offered thousands of dollars to buyers of EVs, plug-in hybrids and hydrogen fuel cell vehicles in California. Rob Nikolewski, San Diego Union-Tribune, 20 July 2026 Hydrogen fuel cells generate electricity by combining hydrogen and oxygen, producing water vapor as the only direct emission. ABC News, 17 July 2026 See All Example Sentences for fuel cell

Word History

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of fuel cell was in 1922

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Cite this Entry

“Fuel cell.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fuel%20cell. Accessed 25 Jul. 2026.

Kids Definition

fuel cell

noun
: a device that continuously changes the chemical energy of a fuel (as hydrogen) into electrical energy

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