razorback

英['reɪzəbæk] 美['rezɚ,bæk]

1. 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

2. any of several baleen whales of the family Balaenopteridae having longitudinal grooves on the throat and a small pointed dorsal fin