What does grain alcohol mean?
• GRAIN ALCOHOL (noun) The noun GRAIN ALCOHOL has 1 sense: 1. the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline Familiarity information: GRAIN ALCOHOL used as a noun is very rare.