ivory-billed woodpecker \| ̷ ̷( ̷ ̷) ̷ ̷| ̷ ̷-\noun orivorybill\ˈ ̷ ̷( ̷ ̷) ̷ ̷ˌ ̷ ̷\ : a nearly extinct large woodpecker (Campephilus principalis) having plumage that is glossy black with white along the neck and wings, a large ivory-white bill, and in the male a large scarlet crest