
Cream of tartar or tartaric acid is a natural component of grapes. Utilizing leftover particles from wine production creates this fine white powder. Crystalline acid deposits form on the inside walls of wine barrels and these deposits are purified and tartaric acid is pulverized into a fine powder. It is also added to baking soda to create bakin......
Found on 
http://whatscookingamerica.net/Glossary/C.htm

(from the article `tartaric acid`) ...treated with sulfuric acid to produce free tartaric acid. Rochelle salt is prepared from the crude crystalline potassium acid salt, called argol, ...
Found on 
http://www.britannica.com/eb/a-z/c/156

A natural component of grape juice and wine. The chemical name is potassium bi-tartrate. Removed from wine as a by-product, cream of tartar is used in cooking and as a component of baking powder.
Found on 
http://www.edenwines.co.uk/Glossary_c.html

Synonym for potassium bitartrate ... KHC4H4O6;a diuretic and laxative. ... Synonym: cream of tartar, potassium acid tartrate. ... (05 Mar 2000) ... 
Found on 
http://www.encyclo.co.uk/local/20973

Raising agent which is an ingredient of baking powder and self-raising flour.
Found on 
http://www.encyclo.co.uk/local/21220

Type: Term Synonyms: potassium bitartrate
Found on 
http://www.medilexicon.com/medicaldictionary.php?t=89741

A natural component of grape juice and wine. The chemical name is potassium bi-tartrate. Removed from wine as a by-product, cream of tartar is used in cooking.
Found on 
http://www.nebraskawines.com/wine-glossary/

Cream Of Tartar (Potassiun Bitartrate) exists in grapes, tamarinds, and other fruits. It is traditionally prepared from the crystalline crust (crude tartar or argol) deposited on the vessels in wliich grape juice has been fermented. The argol is dissolved by boiling with water, the mixture filtered, and the cream of tartar allowed to crystallize ou...
Found on 
http://www.probertencyclopaedia.com/browse/GC.HTM

Potassium hydrogen tartrate
Found on 
http://www.translationdirectory.com/glossaries/glossary071.htm

[
n] - a salt used especially in baking powder
Found on 
http://www.webdictionary.co.uk/definition.php?query=cream%20of%20tartar
(tartric acid) Used to stabilise beaten egg whites and used as a raising agent in some baked goods.
Found on 
https://crushmag-online.com/glossary-baking-terms/
tartar noun a salt used especially in baking powder
Found on 
https://www.encyclo.co.uk/local/20974

A natural component of grape juice and wine. The chemical name is potassium bi-tartrate. Removed from wine as a by-product, cream of tartar is used in cooking and as a component of baking powder.
Found on 
https://www.encyclo.co.uk/local/22305

An acidic salt—potassium hydrogen tartrate (also referred to as tartaric acid); stabilizes beaten egg whites and leavens some baked goods. 
Found on 
https://www.homebaking.org/glossary/

a white, crystalline, water-soluble powder, CHKO, used chiefly as an ingredient in baking powders and in galvanic tinning of metals. Also calledCf. tartar (def. 3).
Found on 
https://www.infoplease.com/dictionary/cream-of-tartar
  No exact match found.