seawolf

noun3

1. •
   Any of various dangerous people and animals that attack at sea.

   • The seawolf twisted onto itself, its jaws clopping together near its own tail. — 1998
2. •
   A strong-jawed North Atlantic fish of wolffish family Anarhichadidae, Anarhichas lupus.
3. •
   (no longer used) An elephant seal.