UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈbʊlˌhɛd/US:USA pronunciation: respellingUSA pronunciation: respelling(bŏŏlhed′)

WordReference Random House Unabridged Dictionary of American English © 2020
bull•head  (bŏŏlhed′),USA pronunciation n. 
  1. Fishany of several North American, freshwater catfishes of the genus Ictalurus, having a rounded or truncate caudal fin.
  2. Fishany of several other fishes, as the freshwater sculpins of the genus Cottus, esp. those species having a hornlike spine on each side of the head.
  3. an obstinate or stupid person.
  • bull1 + head 1665–75, American.

Collins Concise English Dictionary © HarperCollins Publishers::
bullhead /ˈbʊlˌhɛd/ n
  1. any of various small northern mainly marine scorpaenoid fishes of the family Cottidae that have a large head covered with bony plates and spines
'bullhead' also found in these entries (note: many are not synonyms or translations):
Report an inappropriate ad.