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.

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

From BBC • May 20, 2026

Today, most hydrogen is produced through industrial methods that rely on fossil fuels such as petroleum, natural gas, and coal.

From Science Daily • May 20, 2026

But building infrastructure takes time, as does weening the public off fossil fuels.

From Barron's • May 19, 2026

Participants met to draft individualized, national transition roadmaps away from fossil fuels; using more laid back question and answer information sessions, they made unusual progress.

From Salon • May 16, 2026

But Naylor’s farm is one link in a chain that includes fossil fuels, artificial fertilizer, pesticides, heavy machinery, feedlots, antibiotics, and processing plants.

From "The Omnivore's Dilemma" by Michael Pollan