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.
The threat started ramping up decades ago, when humanity’s widespread burning of fossil fuels for energy slowly began to change the chemistry of the atmosphere into a warmer and more chaotic one. Joan Meiners, AZCentral.com, 20 Oct. 2025 China’s surge in renewables and electrification is starting to shrink its greenhouse gas emissions while creating the conditions for other countries to move away from fossil fuel use, according to a recent analysis by the think tank Ember. Alex Wang, Twin Cities, 19 Oct. 2025 Some experts, meanwhile, say that instead of demanding that insurers sell their stake in fossil fuel companies, advocates and policymakers should focus on modernizing regulations to persuade insurers to expand coverage in fire-prone areas. Ethan Varian, Mercury News, 19 Oct. 2025 The American Progress report counters that clean energy is cheaper in the long run than fossil fuels. Daniel De Visé, USA Today, 18 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 24 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

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