gal‧lon /ˈɡælən/
noun [countable][
Date: 1200-1300;
Language: Old North French;
Origin: Medieval Latin galeta 'liquid container, liquid measure']
1. (
written abbreviation gal) a unit for measuring liquids, equal to eight
pints. In Britain this is 4.55 litres, and in the US it is 3.79 litres:
a 20 gallon fish tank The car does about 50 miles per gallon.2. informal a lot of a liquid:
We drank gallons of coffee. [TahlilGaran] Dictionary of Contemporary English ▲