noun
1.
a. : a large strictly marine entirely scaleless eel ( Conger conger ) of a length sometimes as great as eight feet that is an important food fish of Europe and is found on the Atlantic coast of America and on the coasts of Asia and Africa
b. : any other member of the family Congridae some of which (as Conger caudilimbata ) occur in the West Indies and other warm regions
2. : a California moray ( Gymnothorax mordax )