Rochelle
Pronunciation : Ro*chelle"
Part of Speech : n.
Definition : Defn: A seaport town in France. Rochelle powders. Same as Seidlitz powders. -- Rochelle salt (Chem.), the double tartrate of sodium and potassium, a white crystalline substance. It has a cooling, saline, slightly bitter taste and is employed as a mild purgative. It was discovered by Seignette, an apothecary of Rochelle, and is called also Seignete's salt.
Source : Webster's Unabridged Dictionary, 1913