Wine cask deposit

• Tartar deposited in wine casks
• Crude tartar
• Wine-cask crust

Wiktionary Word definitions in Wiktionary
n. potassium tartrate

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Tartar \Tar"tar\, n. [F. tartre (cf. Pr. tartari, Sp., Pg., & It. tartaro, LL. tartarum, LGr. ?); perhaps of Arabic origin.] (Chem.) A reddish crust or sediment in wine casks, consisting essentially of crude cream of tartar, and used in marking pure cream ...

Wikipedia Word definitions in Wikipedia
Argol may mean one of the following: potassium tartrate the arghul , a woodwind musical instrument from the Middle East Argol, Finistère , a commune on the Crozon peninsula in departement of Finistère , in Brittany , France . a locality in ancient Persia ...