Dictionary

Rochelle salt

noun Ro·chelle salt \rō-ˈshel-\

Definition of ROCHELLE SALT

:  a crystalline salt KNaC4H4O6·4H2O that is a mild purgative

Origin of ROCHELLE SALT

La Rochelle, France
First Known Use: 1753
Medical Dictionary

Rochelle salt

noun Ro·chelle salt \rō-ˈshel-\

Medical Definition of ROCHELLE SALT

:  a crystalline salt C4H4KNaO6·4H2O that is a mild purgative—called also potassium sodium tartrate, Seignette salt, sodium potassium tartrate

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