biofuel


bio·fu·el

noun \-ˈfyü(-ə)l\

Definition of BIOFUEL

:  a fuel (as wood or ethanol) composed of or produced from biological raw materials — compare fossil fuel

First Known Use of BIOFUEL

1970

Rhymes with BIOFUEL

biofuel

noun    (Concise Encyclopedia)

Mixture of volatile, flammable hydrocarbons derived from plant material or animal waste and used as fuel. Some long-exploited biofuels, such as wood, can be used directly as a raw material that is burned to produce heat. The heat in turn can be used to run generators in a power plant to produce electricity. Sugars and starches from sugarcane, corn, and high-cellulose plants (such as switchgrass) can be converted into ethanol, which is used directly in internal-combustion engines or is mixed with gasoline (gasohol). Oils from plants such as the soybean or oil palm can be chemically processed and blended with petroleum diesel fuel to make biodiesel.

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