n. [ OE. hadok, haddok, of unknown origin; cf. Ir. codog, Gael. adag, F. hadot. ] (Zool.) A marine food fish (Melanogrammus aeglefinus), allied to the cod, inhabiting the northern coasts of Europe and America. It has a dark lateral line and a black spot on each side of the body, just back of the gills. Galled also
Norway haddock,