Pronunciation: (gōl'dun-sēl"), [key]
1. a plant, Hydrastis canadensis, of the buttercup family, having a thick yellow rootstock.
2. Also called hydrastis. the rhizomes and roots of this plant, formerly used in medicine as an astringent and to inhibit bleeding.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.