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English Lexicon

Fossil fuel

/ˈfɒs.əl ˌfjuːəl/
nounCEFR B2 (Upper)Top #4500 frequency
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Comprehensive Definitions & Senses

1 sense
As noun
  1. 1

    A natural fuel such as coal, gas, or oil formed in the geological past from the remains of living organisms.

    "Governments are working to reduce their reliance on fossil fuels to combat climate change."
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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term combines 'fossil', derived from the Latin 'fossilis' meaning 'dug up' (from fodere 'to dig'), first recorded in English in the late 16th century, and 'fuel', from Old French 'feuille' or Latin 'focus' meaning 'hearth'. The compound 'fossil fuel' emerged in scientific literature during the late 19th century to describe naturally occurring carbon-based energy sources originating from prehistoric organic matter.

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