Rochelle salts


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Ro·chelle salt

or Ro·chelle salts  (rə-shĕl′, rō-)
[After (La) Rochelle.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Noun1.Rochelle salts - a double salt used in Seidlitz powder; acts as a cathartic
double salt - a solution of two simple salts that forms a single substance on crystallization
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