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.
Climate experts have warned that the extreme conditions gripping southeastern Australia are a public health emergency driven by the burning of fossil fuels. Helen Regan, CNN Money, 30 Jan. 2026 Materia Futura launched last year as a design research project born out of Alessia Pasquini and Beatriz Sandini’s curiosity in biomaterials and the need to eliminate fossil fuel plastics. Angela Velasquez, Sourcing Journal, 30 Jan. 2026 These nations—together with to China--will determine the pace of the global climate transition and the future of fossil fuel markets. Scott Montgomery, Forbes.com, 30 Jan. 2026 Clean energy systems are not just lower-carbon substitutes for fossil fuels. Maria Mendiluce, Time, 30 Jan. 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 2 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

More from Merriam-Webster on fossil fuel

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