Definition of "bullhead" [bull•head]

• Any of several large-headed North American freshwater catfishes of the genus Ictalurus. (noun)
• Any of several fishes of the family Cottidae, such as the sculpin and the miller's thumb. (noun)
• Upper Northern U.S. See catfish. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The bullhead is raised of the floor by light but sturdy, chromium plated steel legs, and use of the leather in the form of the head signifies a radical unity between to the two elements, as the bull is source of the leather."
• "The mud weighs about 13 pounds per gallon and is much heavier than the oil, so it should push -- or "bullhead" -- the oil back down the well toward its origin in the ancient rock more than 13,000 feet below the wellhead."
• "Yes | No | Report from Cgull wrote 20 weeks 6 days ago channel cats have a longer fin on the underside that runs in front of the tail, are light in color. flatheads have a flat head and a larger mouth, flathead feed mostly at night and are sometimes called a yellow cat and have a more rounded anal fin. the bullhead is shorter, has a bull head, has a rounded anl fin and is darker"