Cūd'beār, n.

n. [Also cudbeard, a corruption of Cuthbert, so called after Dr. Cuthbert Gordon, who first brought it into notice. In Scotland it is also called corcur, from Gael. corcur, scarlet, crimson, purple.] A powder of a violet-red color, difficult to moisten with water, used in dyeing violet or purple. It is prepared from certain species of lichen, especially Lecanora tartarea. Ure. London.