Had"dock (?), n. [OE. hadoc, 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 haddie, and dickie.
Norway haddock, a marine edible fish (Sebastes marinus) of Northern Europe and America. See Rose fish.
© Webster 1913.