bowheadPronunciation: /ˈbəʊhɛd/ (also bowhead whale)Definition of bowhead noun an Arctic right whale with black skin, feeding by skimming the surface for plankton. Also called Greenland right whale.Balaena mysticetus, family Balaenidae Origin: late 19th century: from bow1 + headbowhead in other Oxford dictionaries Definition of bowhead in the US English dictionary