n.
Pronunciation: ' ha-d ə k
Function: noun
Inflected Form: 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 No. Atlantic that has a black lateral line and dark patch above the pectoral fin