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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The company develops fuel cells, hydrogen generation systems, energy storage technologies and other power systems for aerospace, defense and industrial applications. — Neetika Walter, Interesting Engineering, 25 Sep. 2026 As far as tech goes, the 377-footer has a trio of 900 kW variable-speed permanent-magnet generators running on HVO with fuel cells and a 5 MWh battery pack. — Nicole Hoey, Robb Report, 25 Sep. 2026 Bloom Energy — The manufacturer of fuel cells for data centers tumbled almost 6%. — Michelle Fox,darla Mercado, Cfp®, CNBC, 24 Sep. 2026 The Bloom Energy fuel cell technology also has the flexibility to operate on cleaner fuels like hydrogen or biogas, along with being more compatible with carbon-capture systems. — Jeremy Hsu, ArsTechnica, 11 Sep. 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 2 Oct. 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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