Main Entry:

had·dock

Pronunciation:

\ˈha-dək\

Function:

noun

Inflected Form(s):

plural haddock also haddocks

Etymology:

Middle English haddok

Date:

14th century

: an important food fish (Melanogrammus aeglefinus syn. Gadus aeglefinus) of the cod family occurring on both sides of the North Atlantic that has a black lateral line and dark patch above the pectoral fin