For the kind of alcohol found in alcoholic beverages see ethanol.. other alcohols are usually described with a clarifying adjective as in isopropyl alcohol (propan-2-ol) or. An alcoholic beverage is a drink containing ethanol (commonly called alcohol). alcohol is a psychoactive drug that has a depressant effect.. Alcohol ( ) n. a colorless volatile flammable liquid c 2 h 5 oh synthesized or obtained by fermentation of sugars and starches and widely used Alcohol definition at dictionary.com a free online dictionary with pronunciation synonyms and translation. look it up now! Deciding whether to drink is a personal decision that we each eventually have to make. get the facts about alcohol. More about alcoholism: causes and symptoms diagnosis symptoms of co-alcohol dependence treatment alternative treatment prognosis prevention resources Translations of alcohol. alcohol synonyms alcohol antonyms. information about alcohol in the free online english dictionary and encyclopedia.. Exactly how alcohol affects the brain and the likelihood of reversing the impact of heavy drinking on the brain remain hot topics in alcohol research today.. If you are like many americans you drink alcohol at least occasionally.. nih: national institute on alcohol abuse and alcoholism. if you are. Alcohol is a generic name for large group of organic chemical compounds.. the general formula for alcohol is roh where r signifies a hydrocarbon radical.