'Burdock' definitions:

Definition of 'burdock'

(from WordNet)
noun
Any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs [syn: burdock, clotbur]

Definition of 'Burdock'

From: GCIDE
  • Burdock \Bur"dock\, 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. [1913 Webster]
  • Note: The common burdock is the Lappa officinalis. [1913 Webster]