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.
Critically, roughly 70% of the increase in clean-energy spending over the past five years has come from net importers of fossil fuels — nations motivated not by climate idealism but by energy security. Nick Lichtenberg, Fortune, 12 June 2026 That clarity has allowed other researchers to tie the financial damages from catastrophic weather events to the influence of fossil fuels produced by individual companies. ArsTechnica, 12 June 2026 The algae also gains nitrogen from rain loaded with nitrates from fossil fuel pollution, Lapointe said. Bill Kearney, Sun Sentinel, 12 June 2026 In order to standardize their modeling, over the last couple of decades climate scientists developed a suite of projections for how much CO2 would get dumped into the atmosphere via fossil fuel use. Adam Frank, Forbes.com, 12 June 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 15 Jun. 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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