\I"vo*ry-bill`\, n. (Zo["o]l.)
A large, handsome, North American woodpecker ({Campephilus
principalis}), having a large, sharp, ivory-colored beak. Its
general color is glossy black, with white secondaries, and a
white dorsal stripe. The male has a large, scarlet crest. It
is now rare, and found only in the Gulf States.