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.
But as energy bills go up, Republicans are trying to blame progressives for trying to phase out fossil fuels. David Weigel, semafor.com, 13 Oct. 2025 After Hungary and Slovakia—which along with Austria remains opposed to certain provisions of the package—the next largest importers of Russian fossil fuels are France, the Netherlands, and Belgium. Micah McCartney, MSNBC Newsweek, 13 Oct. 2025 Scientists say for humanity to avoid the most catastrophic effects of a hotter climate, most of the world's fossil fuels need to stay in the ground, including nearly half of natural gas reserves. NPR, 13 Oct. 2025 Thousands — perhaps tens of thousands — of workers could lose jobs in the coming years as California tries to reduce its reliance on fossil fuels. Jason Ma, Fortune, 12 Oct. 2025 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

Browse Nearby Words

Cite this Entry

“Fossil fuel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fossil%20fuel. Accessed 19 Oct. 2025.

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!