Gallon Measure of volume. 1.2 American gallons equal 1 Imperial (British) gallon. One Imperial gallon yields 6 standard British bottles of liquor. One American gallon yields 5 standard American bottles of liquor.

Gamma alcoholism Alcoholism to the point where physical dependence has developed.

Gamma-Glutamyl transpeptidase(GGPT) Enzyme found in liver tissue - blood levels may be raised due to liver disease (especially alcohol-related damage).

Gay Lussac System Metric system for indicating strength of alcohol. Measures the volume of alcohol on a scale where water = 0 and pure alcohol = 100.

Gelatine Used as a finings for wine (to remove impurities).

German Purity Law A 1516 law to control beer production (reinheitsgebot).

Gill 1. Drink of liquor. 2. Quarter of a pint of beer.

Gin Rectified neutral spirit distilled from grain, potato or beet and flavoured with juniper berries or extract.

Gin Lane Famous 18th. century engraving by Hogarth.

Glayva Scottish whiskey-based liqueur flavoured with herbs and spices.

Goodwin, Donald Author of the book "Alcoholism - The Facts"

Grain neutral spirits Almost pure alcohol produced by distilling grain mash. Contains over 190 proof / 95% alcohol by volume.

Grain spirits Alcohol distilled from fermented grain mash and aged in oak casks. As a result of storage the alcohol acquires certain qualities not contained in grain neutral spirits.

Grand Marnier French liqueur made from oranges.

Grappa Italian brandy made from left-over grape skins.

Great Thirst, (The) Slang term for the years of prohibition (1919-1933) in the U.S.A.

Grenadine Non-alcoholic red syrup made from pomegranates and used making mixed drinks.

Grog 1. Diluted rum. 2. General term for distilled spirits. 3. To drink hard spirits.

Guindado Fermented cherry liqueur made in Uruguay.

Guinness Irish brewery famous for the production of dark bitter stout.

Gyokuro Rikyu Japanese low-alcohol liqueur based on green tea and brandy.