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Definitions

fossil fuel

[fos-uhl fyoo-uhl] / ˈfɒs əl ˈfyu əl /
NOUN
fuel derived from prehistoric organisms
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It was one of the first nations to sign a proposed treaty calling for an end to the expansion of fossil fuel projects.

From Barron's • Jun. 5, 2026

Researchers estimate that carbon released through soil respiration is seven to eight times greater than annual fossil fuel emissions produced by humans.

From Science Daily • Jun. 2, 2026

Again those fuels are likely to be a major cost for airlines, with estimates that the cost could be 10 times higher than traditional fossil fuel.

From The Wall Street Journal • Jun. 2, 2026

This creates a dilemma for countries rethinking their reliance on fossil fuel, following the second energy crisis in four years.

From The Wall Street Journal • May 19, 2026

That takes a lot of energy and a lot of fossil fuel.

From "The Omnivore's Dilemma" by Michael Pollan




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