The Collaborative International Dictionary of English v.0.48:
Nutcracker \Nut"crack`er\, n. 1. An instrument for cracking nuts. [1913 Webster] 2. (Zool.) (a) A European bird (Nucifraga caryocatactes), allied to the magpie and crow. Its color is dark brown, spotted with white. It feeds on nuts, seeds, and insects. (b) The American, or Clarke's, nutcracker (Picicorvus Columbianus) of Western North America. [1913 Webster]