Found in the following dictionaries
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Biofuel" Definition
noun
Fuel such as methane produced from renewable biological resources such as plant biomass and treated municipal and industrial waste.
Source: American Heritage Dictionary
A fuel (as wood or ethanol) composed of or produced from biological raw materials.
Source: Merriam-Webster
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