from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Crude potassium bitartrate, a by-product of winemaking.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. potassium tartrate
from the GNU version of the Collaborative International Dictionary of English
- n. Crude tartar; an acidulous salt from which cream of tartar is prepared. It exists in the juice of grapes, and is deposited from wines on the sides of the casks.
from The Century Dictionary and Cyclopedia
- n. Unrefined or crude tartar; a hard crust, consisting of potassium bitartrate, formed on the sides of vessels in which wine has been fermented.
- n. A cake of dried camel's dung, used by the Mongols as fuel.
Middle English argoile, from Anglo-Norman argoil, ultimately from Latin argilla, clay; see argil.(American Heritage® Dictionary of the English Language, Fourth Edition)