hydrastis
noun
hy·dras·tis
| \ hī-ˈdras-təs
\
\
Medical Definition of hydrastis
1
capitalized
: a genus of herbs (family Ranunculaceae) having palmately lobed leaves and small greenish flowers and including the goldenseal (H. canadensis)
2
: the dried rhizome and roots of the goldenseal formerly used in pharmacy as a bitter tonic, hemostatic, and antiseptic
— called also goldenseal