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biofuel A liquid fuel or blending component produced from dry organic matter or combustible oils produced by plants. Examples of biofuel include alcohol (from fermented sugar), black liquor from the paper manufacturing process, wood, soybean oil, and biodiesel.Biofuels are used primarily for transportation. Related category • BIOENERGY AND BIOFUEL Also on this site: Encyclopedia of Science Transport Concepts & Designs (partner site) |