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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Jonas Rattel Hydrogen fuel cell prototypes are already rolling out of the BMW Group’s Steyr production plant ahead of a 2028 production launch. Michael Taylor, Forbes.com, 2 Sep. 2025 This development could lead to more efficient and durable fuel cells for clean energy applications in the future. Christopher McFadden, Interesting Engineering, 30 Aug. 2025 Carthage College in Wisconsin will test new methods for gauging propellant levels in space, while a Teledyne payload, developed with NASA's Glenn Research Center in Cleveland, will test the a spacecraft fuel cell system before its possible use on moon and Mars missions. Robert Z. Pearlman, Space.com, 23 Aug. 2025 Many of the advances in fuel cell technology trace back to work done to provide power for spacecraft and sources of oxygen for astronauts. Jeff Young, MSNBC Newsweek, 21 Aug. 2025 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 9 Sep. 2025.

Kids Definition

fuel cell

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

More from Merriam-Webster on fuel cell

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