Definition of hardhead in English:

hardhead

noun

  • 1An Australasian diving duck related to the pochard, with mainly dark brown plumage.

    Aythya australis, family Anatidae. Alternative name: white-eyed duck

  • 2A marine catfish, the male of which incubates the eggs inside its mouth. It occurs along the Atlantic coast of North America.

    Arius felis, family Ariidae

Pronunciation

hardhead

/ˈhɑːdhɛd/