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.
American leaders may be all-in on fossil fuels, but the rest of the world isn’t so sure. Nicholas Gordon, Fortune, 3 Nov. 2025 According to the team, the process mimics the geological conditions that form fossil fuels, compressing wet biomass at high temperatures and pressures to produce biocrude. Melissa Fleur Afshar, MSNBC Newsweek, 31 Oct. 2025 In addition to China, Europe and India are also expanding their focus on renewables, even as China remains a massive coal producer and India mixes its energy provision with fossil fuels. Nick Thomas, The Washington Examiner, 31 Oct. 2025 Opportunities also abound to sell credits for switching from fossil fuel stoves—some 80% of sub-Saharan Africans use wood or charcoal for cooking—to solar or biomass. Charlie Campbell, Time, 30 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 5 Nov. 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

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