seid

a. Of or pertaining to Seidlitz, a village in Bohemia. [ Written also Sedlitz. ] [ 1913 Webster ]

Seidlitz powders, effervescing salts, consisting of two separate powders, one of which contains forty grains of sodium bicarbonate mixed with two drachms of Rochell&unr_; salt (tartrate of potassium and sodium) and the other contains thirty-five grains of tartaric acid. The powders are mixed in water, and drunk while effervescing, as a mild cathartic; -- so called from the resemblance to the natural water of Seidlitz. Called also Rochelle powders. --
Seidlitz water, a natural water from Seidlitz, containing magnesium, sodium, calcium, and potassium sulphates, with calcium carbonate and a little magnesium chloride. It is used as an aperient. [ 1913 Webster ]