Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of four isomeric crystalline organic compounds, C4H6O6, used to make cream of tartar and baking powder, as a sequestrant, and in effervescent beverages and photographic chemicals.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a white crystalline acid that occurs naturally in many plants, and in wine; it is used as the salts cream of tartar and Rochelle salt
  • n. The aldaric acid, 2,3 dihydroxy-succinic acid

from the GNU version of the Collaborative International Dictionary of English

  • adj. By extension, any one of the series of isomeric acids (racemic acid, levotartaric acid, inactive tartaric acid) of which tartaric acid proper is the type.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. an acid found in many fruits; used in soft drinks and confectionery and baking powder

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