Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun fossil_fuel

1 sense of fossil fuel

Sense 1
fossil fuel -- (fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content)
       => fuel -- (a substance that can be consumed to produce energy; "more fuel is needed during the winter months"; "they developed alternative fuels for aircraft")

2020, Cloud WordNet Browser