English

Noun

Winchester quart ‎(plural Winchester quarts)

1. (Britain) a unit of volume equal to half a Winchester gallon^[1], equal to two quarts, or 2.273 litres.
2. (Britain) a bottle of that size used in laboratories, commonly holding 2.5 litres.

References

1. ↑ Weights and Measures of the City of Winchester (retrieved 25 September 2007)