schnauzer

A dog of any of three breeds of various sizes, the miniature schnauzer, standard schnauzer, and giant schnauzer, having a blunt muzzle with a bristly beard and a wiry salt-and-pepper or black coat.

A breed of dog originating in Germany

old German breed of sturdy black or greyish wire-haired terriers having a blunt muzzle ranging in size from fairly small to very large; used as ratters and guard dogs or police dogs