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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Bloom relies on modular fuel cells that can be used to scale up a data center more quickly than relying on gas turbines alone, which can take months or years to put in place due to supply chain delays. Bloomberg, Mercury News, 14 Apr. 2026 Oracle expanded its capacity partnership with Bloom Energy on Monday, days after receiving a warrant to purchase $400 million of the fuel cell power company’s stock. Samantha Subin, CNBC, 14 Apr. 2026 Vehicle uses a hydrogen fuel cell system The vehicle uses a hydrogen fuel cell system that converts hydrogen into electricity to power an electric motor, producing only water vapor as a byproduct. Prabhat Ranjan Mishra, Interesting Engineering, 12 Apr. 2026 The vehicle, which is based on the mid-size iX5, features a futuristic propulsion system developed in collaboration with Toyota that includes electric motors and a hydrogen fuel cell. Bryan Hood, Robb Report, 9 Apr. 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 22 Apr. 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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