A barrel is one of several units of volume, with dry barrels, fluid barrels (UK beer barrel, US beer barrel), oil barrel, etc. The volume of some barrel units is double others, with various volumes in the range of about 100–200 litres (22–44 imp gal; 26–53 US gal).
Define barrel. barrel synonyms, barrel pronunciation, barrel translation, English dictionary definition of barrel. n. 1. A large cylindrical container, usually made of staves bound together with hoops, with a flat top and bottom of equal diameter. 2. The quantity that a...
A barrel is one of several units of volume applied in various contexts: there are dry barrels; fluid barrels, such as the British beer barrel and American beer barrel; oil barrels, etc.