Razorback definition

adjective

(1) Having a sharp narrow back

"A razor-backed horse"

"Razorback hogs"

noun

(2) Any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin

(3) A mongrel hog with a thin body and long legs and a ridged back; a wild or semi-wild descendant of improved breeds; found chiefly in the southeastern United States