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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.

Farallon also invested in fossil fuel projects, including an Australian coal mine that denuded thousands of acres of koala habitat and generated an enormous amount of carbon emissions.

From Los Angeles Times • Apr. 6, 2026

"We already have a backlog of renewable energy projects that are waiting for grid connections," and the timelines are potentially "much shorter" than for fossil fuel projects.

From Barron's • Apr. 1, 2026

Gould said fossil fuel emissions are associated with various cancers, an increase in hospitalizations for older adults due to respiratory conditions, and asthma attacks or stunted lung growth in children.

From Los Angeles Times • Mar. 23, 2026

There are also concerns that further exploration would lead to new fossil fuel supplies being found and extracted, increasing the UK's carbon footprint rather than reducing it.

From BBC • Mar. 22, 2026

He said there were so many untapped sources of energy in the world that it was ridiculous to be burning all that fossil fuel.

From "The Glass Castle" by Jeannette Walls