Definition

biofuels: fuels that are made from renewable biological products (for example, methane) noun
  • "The biofuels in question were made from algae (aquatic plant-like organisms, but not the kind found in miso soup)."
  • "Recent test flights have succeeded in using a mix of 50% biofuels and 50% traditional kerosene."
  • "Environmentalists point out that the production of biofuels isn't entirely green."

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