Definition of alcohol in English:


Syllabification: al·co·hol
Pronunciation: /ˈalkəˌhôl, -ˌhäl


  • 1A colorless volatile flammable liquid that is the intoxicating constituent of wine, beer, spirits, and other drinks, and is also used as an industrial solvent and as fuel.
    • Alternative names: ethanol, ethyl alcohol; chemical formula: C2H5OH
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    • Sugar is taken and in the presence of an enzyme (a biological catalyst) ethyl alcohol and carbon dioxide are produced.
    • Fermentation The conversion of sugar in grape juice into ethyl alcohol and carbon dioxide.
    • an important measurement of any wine, is its concentration of the intoxicant ethyl alcohol, or ethanol.
  • 1.1Drink containing this: he has not taken alcohol in twenty-five years
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    • He said that among the tenets of the Muslim faith were that one did not drink alcohol or serve it to guests.
    • If he could have stopped at one or two drinks, alcohol would have served him well, but he couldn't do that.
    • If you are using alcohol, vodka is the most appropriate as it has no scent of its own.
    liquor, intoxicating drink/beverage(s), strong drink, alcoholic drink/beverage(s), drink, spirits
    informal booze, hooch, the hard stuff, firewater, rotgut, moonshine, white lightning, grog, the demon rum, the bottle, the sauce
    technical ethyl alcohol, ethanol
  • 1.2 Chemistry Any organic compound whose molecule contains one or more hydroxyl groups attached to a carbon atom.
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    • Complete combustion of alcohols produces carbon dioxide and water.
    • Thermatoga microorganisms are known to play a role in the anaerobic oxidation of hydrocarbons to alcohols, organic acids and carbon dioxide.
    • On the other hand, the permeability of the membrane for small uncharged solutes such as low molecular weight alcohols, amides, ketones etc., did not change.


mid 16th century: French (earlier form of alcool), or from medieval Latin, from Arabic al-kuḥl 'the kohl'. In early use the term denoted powders, specifically kohl, and especially those obtained by sublimation; later 'a distilled or rectified spirit' (mid 17th century).

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