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.
However, as oil production declines and fossil fuel companies increasingly become insolvent, California regulators worry taxpayers may have to assume the costs to plug these wells. Tony Briscoe, Los Angeles Times, 14 Feb. 2026 About 40% of the carbon dioxide emissions from cement production come from burning fossil fuels to generate the high heat needed to run the kiln. Alcina Johnson Sudagar, The Conversation, 12 Feb. 2026 Supreme Court has upheld endangerment finding The Supreme Court ruled in a 2007 case that planet-warming greenhouse gases, caused by burning of oil and other fossil fuels, are air pollutants under the Clean Air Act. Matthew Daly, Chicago Tribune, 12 Feb. 2026 That’s not to say India isn’t still heavily reliant on planet-heating fossil fuels. Laura Paddison, CNN Money, 11 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

Browse Nearby Words

Cite this Entry

“Fossil fuel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fossil%20fuel. Accessed 16 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

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