ˈhadə̇k noun
( plural haddock also haddocks )
Etymology: Middle English haddok
1. : an important food fish ( Melanogrammus aeglefinus ) of the family Gadidae that is usually smaller than the common cod, has a black lateral line and a dark spot just behind the gills, and occurs on both sides of the Atlantic from Iceland south to the Mediterranean and Cape Hatteras
2.
a. : hake
b. : rosefish