fossil fuels

NOUN

fuel derived from prehistoric organisms

Synonyms

WEAK

hydrocarbon deposit nonrenewable energy nonrenewable fuel source

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.

Dombrovskis said the EU had to learn from the shocks by "further reducing its reliance on imported fossil fuels".

From Barron's • May 21, 2026

As well as pricing issues, some commentators believe China wants to avoid over-dependence on Russian fossil fuels.

From BBC • May 20, 2026

Renewable energy sources can cut harmful emissions, reduce reliance on fossil fuels, and improve efficiency.

From Science Daily • May 18, 2026

As more planet-warming gases are released from burning fossil fuels, rising heat is also causing more moisture to evaporate off the land and making plants absorb more moisture.

From Los Angeles Times • May 13, 2026

The nitrogen for the fields would no longer be made with the sun’s energy but with fossil fuels.

From "The Omnivore's Dilemma" by Michael Pollan