Webster’s Revised Unabridged Dictionary · 1913
Burdock
Bur′dock (bûr′dŏk), n. [Bur + dock the plant.] (Bot.) A genus of coarse biennial herbs (Lappa), bearing small burs which adhere tenaciously to clothes, or to the fur or wool of animals.
☞ The common burdock is the Lappa officinalis.