Alcohol: A member of a class of organic compounds containing carbon, hydrogen and oxygen. Considered as hydroxyl derivatives of hydrocarbons, produced by the replacement of one or more hydrogen atoms by one or more hydroxyl (-OH) groups. Under the modern IUPAC (International Union of Pure and Applied Chemistry) naming system, the name given to an alcohol is derived from the parent hydrocarbon, with the final “e” changed to “ol”: thus methane-methanol; ethane-ethanol; etc. The principal alcohol in fuel and beverage use is ethanol, (otherwise known as ethyl alcohol). Murtagh & Associates, Alcohol Glossary
Aqua Vitae: Strong distilled alcohol; Latin for “water of life”.
Barrel: A liquid measure equal to 42 U.S. gallons, or 5.6 cubic feet. Or, a wooden container used for the aging and maturation of alcoholic beverages. Barrels used for whiskey maturation are made of oak wood, and have a capacity of about 52 U.S. gallons. Barrels may be used only once for aging bourbon whiskey, so there is a worldwide trade in used bourbon barrels for aging other alcoholic products such as Scotch whisky and rum. (Barrel measurements vary across different countries.) Murtagh & Associates, Alcohol Glossary