fossil fuel

noun

: a fuel (such as coal, oil, or natural gas) formed in the earth from plant or animal remains
fossil-fueled adjective

Examples of fossil fuel in a Sentence

oil and other fossil fuels
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Natural gas wins in all but the most aggressive energy transition scenarios because of its mix of reliability, price, and lower emissions profile compared to other fossil fuels. Justin Worland, Time, 28 Feb. 2026 The Michigan attorney general’s office alleges the companies have colluded since at least 1980 to maintain reliance on fossil fuels. Taylor Millard, Boston Herald, 28 Feb. 2026 The idea is that renewable power—when coupled with shorter- and long-duration batteries—can finally shed the reliability concerns of critics and offer the equivalent of baseload power provided by fossil fuel generation and nuclear power. Jordan Blum, Fortune, 28 Feb. 2026 It can be burnt, much like a fossil fuel, but produces only water as a byproduct, offering a carbon-free solution for energy-intensive applications. Ameya Paleja, Interesting Engineering, 27 Feb. 2026 See All Example Sentences for fossil fuel

Word History

First Known Use

1759, in the meaning defined above

Time Traveler
The first known use of fossil fuel was in 1759

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Cite this Entry

“Fossil fuel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fossil%20fuel. Accessed 4 Mar. 2026.

Kids Definition

fossil fuel

noun
: a fuel (as coal, oil, or natural gas) that is formed in the earth from plant or animal remains

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