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.
There are plenty of fossil fuels for multitudes of generations. Voice Of The People, New York Daily News, 7 Feb. 2026 The study found winter rainfall ahead of the wildfires had dropped by about 14% since the pre-industrial era, when a heavy reliance on fossil fuels began. Menelaos Hadjicostis, Los Angeles Times, 6 Feb. 2026 Premier Tim Houston signed an agreement to strengthen collaboration between the two jurisdictions on offshore wind development in the North Atlantic as the region’s electrical grid has been powered by fossil fuels during the cold winter weather. Tim Dunn, Boston Herald, 5 Feb. 2026 Due to its higher energy density, hydrogen can serve as a good replacement for fossil fuels. Ameya Paleja, Interesting Engineering, 5 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 9 Feb. 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

More from Merriam-Webster on fossil fuel

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