| seidlitz powder | |
noun | |
| an effervescing salt containing sodium bicarbonate and Rochelle salt and tartaric acid; used as a cathartic |
Seidlitz powder Seid·litz powder or Seid·litz powders (sěd'lĭts)
n.
A mixture of tartaric acid, sodium bicarbonate, and potassium sodium tartrate, used as a mild cathartic by dissolving in water and drinking.