goldthread

[ gohld-thred ]
/ ˈgoʊldˌθrɛd /

noun

a white-flowered plant, Coptis trifolia, of the buttercup family, having a slender, yellow root that is sometimes used as a tonic.

Origin of goldthread

An Americanism dating back to 1770–80; gold + thread

Example sentences from the Web for goldthread

British Dictionary definitions for goldthread

goldthread
/ (ˈɡəʊldˌθrɛd) /

noun

a North American woodland ranunculaceous plant, Coptis trifolia (or C. groenlandica), with slender yellow roots
the root of this plant, which yields a medicinal tonic and a dye