ra·zor-backed /-ˌbækt/
  Ra·zor-backed a. Zool. Having a sharp, lean, or thin back; as, a razor-backed hog, perch, etc.
  ◄ ►
  razor-backed
       adj : having a sharp narrow back; "a razor-backed horse";
             "razorback hogs" [syn: razorback]