: a crystalline salt KNaC4H4O6·4H2O that is a mild purgative
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“Rochelle salt.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Rochelle%20salt. Accessed 8 Nov. 2024.
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Rochelle salt
noun
Ro·chelle salt
rō-ˌshel- 
: a salt of potassium and sodium that is used as a laxative
Medical Definition
Rochelle salt
noun
Ro·chelle salt
rō-ˈshel-
: a crystalline salt C4H4KNaO6·4H2O that is a mild purgative
called also potassium sodium tartrate, Seignette salt, sodium potassium tartrate
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