First Known Use: 13th century
Dictionary
gallon
noun gal·lon \ˈga-lən\
: a unit of liquid measurement equal to four U.S. quarts or 3.785 liters
: a unit of liquid measurement equal to four British quarts or 4.546 liters
Full Definition of GALLON
: a unit of liquid capacity equal to 231 cubic inches or four quarts — see weight table
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Origin of GALLON
Middle English galon, a liquid measure, from Anglo-French galun, jalun, ultimately from Medieval Latin galeta pail, a liquid measure
GALLON Defined for Kids
gallon
noun gal·lon \ˈga-lən\
Definition of GALLON for Kids
: a unit of liquid capacity equal to four quarts (about 3.8 liters)
Medical Dictionary
gallon
noun gal·lon \ˈgal-ən\
Medical Definition of GALLON
1
: a United States unit of liquid capacity equal to four quarts or 231 cubic inches or 3.785 liters
2
: a British unit of liquid and dry capacity equal to four quarts or 277.42 cubic inches or 4.544 liters—called also imperial gallon
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