imperial gallon

Multiple Entries:
  imperial gallon    gallon  

Concise Oxford English Dictionary © 2008 Oxford University Press:
imperial gallon

▶noun see gallon (sense 1).

Concise Oxford English Dictionary © 2008 Oxford University Press:
gallon /ˈgalən/

▶noun

• 1 a unit of volume for liquid measure equal to eight pints: in Britain (also imperial gallon), equivalent to 4.55 litres; in the US, equivalent to 3.79 litres.

• 2 (gallons) informal large quantities.

– derivatives
gallonage noun.

– origin ME: from Anglo-Norman Fr. galon, from the base of med. L. galleta, galletum ‘pail, liquid measure’, perh. of Celtic origin.