I"vo*ry-bill` (ī"v?*r?*bĭl`),
n. (Zoöl.) 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.