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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Sustainability and reliability One of the biggest challenges facing the market is how microgrids are deployed sustainably, as much of the discussion on the tech has revolved around the use of gas turbines or fuel cells, Diego Diaz Hernandez, a partner at McKinsey, told CNBC. April Roach,gaelle Legrand, CNBC, 11 Mar. 2026 One lantern likely became caught in a tree, dropping its burning fuel cell and igniting the fire. Doug Myers, CBS News, 7 Mar. 2026 Some teams are studying microbial fuel cells that generate electricity using bacteria in the gut. Kurt Knutsson, FOXNews.com, 7 Mar. 2026 Framing hydrogen as more than an experimental concept, the company described the platform as a proof point for how fuel cell systems can satisfy emerging operational requirements. Bojan Stojkovski, Interesting Engineering, 22 Feb. 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 13 Mar. 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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