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potassium sodium tartrate

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Rochelle salt

–noun Chemistry, Pharmacology.
a colorless or white, water-soluble solid, KNaC4H4O6·4H2O, used in silvering mirrors, in the manufacture of Seidlitz powders and baking powder, and in medicine as a laxative.


Origin:
1745–55; after La Rochelle
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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potassium sodium tartrate  
n.  A colorless efflorescent crystalline compound, KNaC4H4O6·4H2O, used in making mirrors, in electronics, and as a laxative. Also called Rochelle salt.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: potassium sodium tartrate
Function: noun
: ROCHELLE SALT

Main Entry: Ro·chelle salt
Pronunciation: rO-'shel-
Function: noun
: a crystalline saltC4H4-KNaO6·4H2O that is a mild purgative called also potassium sodium tartrate, Seignette salt, sodium potassium tartrate
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

potassium sodium tartrate n.
A colorless efflorescent crystalline compound used as a laxative. Also called Rochelle salt, Seignette's salt.

Rochelle salt Ro·chelle salt (rə-shěl', rō-)
n.
See potassium sodium tartrate.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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