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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.

Two options are often put forward by experts: reducing fossil fuel consumption and significantly expanding renewables.

From Barron's • Apr. 1, 2026

A 2,000-year-old cement battery could reduce our reliance on fossil fuel.

From The Wall Street Journal • Mar. 27, 2026

By 1952, Haagy had figured out the smog recipe: Start with the dirty leftovers of burning fossil fuel from factories, oil refineries, and the unburned gas exhaust from cars and trucks.

From Los Angeles Times • Mar. 26, 2026

It follows the government's Warm Homes Plan, which promised £15bn to help UK households pay for green technologies as part of efforts to cut fossil fuel use and drive down energy bills.

From BBC • Mar. 24, 2026

How much fossil fuel was burned to keep it refrigerated and fly it to the U.S.?

From "The Omnivore's Dilemma" by Michael Pollan