Webster’s Revised Unabridged Dictionary · 1913
Hydrastine
Hy·dras′tine (hī·drăs′tĭn or ·tēn), n. (Chem.) An alkaloid, found in the rootstock of the golden seal (Hydrastis Canadensis), and extracted as a bitter, white, crystalline substance. It is used as a tonic and febrifuge.