(redirected from La Rochelle (disambiguation))


n.1.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.