GASOHOL

n. combination of gasoline and ethyl alcohol (used as fuel for some automobiles)

Ethanol (ethyl alcohol) and methanol (methyl alcohol) are two types of alcohol fuels. The use of pure alcohols in internal combustion engines is only possible if the engine is designed or modified for that purpose. However, in their anhydrous or pure forms, they can be mixed with gasoline (petrol) in various ratios for use in unmodified automobile engines. Typically, only ethanol is used widely in this manner, particularly since methanol is toxic.
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Noun
1. a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn
(hypernym) fuel
(substance-meronym) gasoline, gasolene, gas, petrol

n. gasohol, combination of gasoline and ethyl alcohol

(See also Fuel, Gasoline) A blend of finished motor gasoline (leaded or unleaded) and alcohol (generally ethanol but sometimes methanol) limited to 10 percent by volume of alcohol. Gasohol is included in finished leaded and unleaded motor gasoline. (DOE3)