BULLHEAD
bullhead, bullhead catfish
(noun) any of several common freshwater catfishes of the United States
bullhead
(noun) freshwater sculpin with a large flattened bony-plated head with hornlike spines
Source: WordNet® 3.1
Etymology
Noun
bullhead (plural bullheads)
(North America) any of a variety of related species of generally dark-colored catfish in the family Ictaluridae.
(North America) The black bullhead, Ameiurus melas.
(North America) The brown bullhead, Ameiurus nebulosus.
(North America) The yellow bullhead, Ameiurus natalis.
Synonym: mudcat
(Europe, Asia) Any of various sculpins of the suborder Scorpaenoidei
(Europe, Asia) The European bullhead, Cottus gobio.
(New Zealand) A fish of species Gobiomorphus gobioides.
(rail transport) bullhead rail
(horology) a chronograph (watch or stopwatch) with two push buttons arranged like the horns of a bull on the top end of the case, typically with the crown between them.
Source: Wiktionary
Bull"head`, n.
1. (Zoƶl.)
(a) A fresh-water fish of many species, of the genus Uranidea, esp.
U. gobio of Europe, and U. Richardsoni of the United States; --
called also miller's thumb.
(b) In America, several species of Amiurus; -- called also catfish,
horned pout, and bullpout.
(c) A marine fish of the genus Cottus; the sculpin.
2. (Zoƶl.)
(a) The black-bellied plover (Squatarola helvetica); -- called also
beetlehead.
(b) The golden plover.
3. A stupid fellow; a lubber. [Colloq.] Jonson.
4. (Zoƶl.)
Definition: A small black water insect. E. Phillips. Bullhead whiting
(Zoƶl.), the kingfish of Florida (Menticirrus alburnus).
Source: Webster’s Unabridged Dictionary 1913 Edition