| | - barrel
- unit of both liquid and dry measure in the British Imperial and United States Customary systems, ranging from 31.5 to 42 gallons for liquids and fixed at 7,056 cubic inches (105 dry quarts, or 115.63 litres) for most fruits, vegetables, ...
- barrel
- large, bulging cylindrical container of sturdy construction traditionally made from wooden staves and wooden or metal hoops. The term is also a unit of volume measure, specifically 31 gallons of a fermented or distilled beverage, or 42 gallons of a ...
- barrel cactus
- name for a group of more or less barrel-shaped cacti, family Cactaceae, native to North and South America. It is most often used for two large-stemmed North American genera, Ferocactus and Echinocactus. Small barrel cacti include the genera Sclerocactus, Neolloydia, ...
- barrel organ
- musical instrument in which a pinned barrel turned by a handle raises levers, admitting wind to one or more ranks of organ pipes; the handle simultaneously actuates the bellows. Ten or more tunes can be set on one barrel.
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