goldenseal definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
an American plant (Hydrastis canadensis) of the buttercup family, with large, round leaves and a thick, yellow rootstock, formerly much used in medicine
goldenseal definition by American Heritage Dictionary
A woodland plant (Hydrastis canadensis) of eastern North America, having small greenish-white flowers and a yellow root used in herbal medicine. Also called orangeroot.