—n. 1. a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
2. a fully mature male animal of this type; stallion.
3. any of several odd-toed ungulates belonging to the family Equidae, including the horse, zebra, donkey, and ass, having a thick, flat coat with a narrow mane along the back of the neck and bearing the weight on only one functioning digit, the third, which is widened into a round or spade-shaped hoof.
4. something on which a person rides, sits, or exercises, as if astride the back of such an animal: rocking horse. 5. Also called trestle. a frame, block, etc., with legs, on which something is mounted or supported.
6. Gymnastics. a. See vaulting horse. b. See pommel horse. 7. Carpentry.carriage (def. 7).
8. soldiers serving on horseback; cavalry: a thousand horse. 9. Slang.a man; fellow.
10. Often, horses.Informal.horsepower.
11. horses,Slang.the power or capacity to accomplish something, as by having enough money, personnel, or expertise: Our small company doesn't have the horses to compete against a giant corporation. 12. Chess Informal.a knight.
13. Slang.a crib, translation, or other illicit aid to a student's recitation; trot; pony.
14. Mining.a mass of rock enclosed within a lode or vein.
15. Naut.traveler (def. 6b).
16. Shipbuilding.a mold of a curved frame, esp. one used when the complexity of the curves requires laying out at full size.
18. back the wrong horse, to be mistaken in judgment, esp. in backing a losing candidate.
19. beat or flog a dead horse, to attempt to revive a discussion, topic, or idea that has waned, been exhausted, or proved fruitless.
20. from the horse's mouth,Informal.on good authority; from the original or a trustworthy source: I have it straight from the horse's mouth that the boss is retiring. 21. hold one's horses,Informal.to check one's impulsiveness; be patient or calm: Hold your horses! I'm almost ready. 22. horse of another color, something entirely different. Also,horse of a different color. 23. look a gift horse in the mouth, to be critical of a gift.
24. To horse! Mount your horse! Ride!
—v.t. 1. to provide with a horse or horses.
2. to set on horseback.
3. to set or carry on a person's back or on one's own back.
4. Carpentry.to cut notches for steps into (a carriage beam).
5. to move with great physical effort or force: It took three men to horse the trunk up the stairs. 6. Slang. a. to make (a person) the target of boisterous jokes.
b. to perform boisterously, as a part or a scene in a play.
7. Naut. a. to caulk (a vessel) with a hammer.
b. to work or haze (a sailor) cruelly or unfairly.
8. Archaic.to place (someone) on a person's back, in order to be flogged.
—v.i. 1. to mount or go on a horse.
2. (of a mare) to be in heat.
3. Vulgar.to have coitus.
4. horse around,Slang.to fool around; indulge in horseplay.
—adj. 1. of, for, or pertaining to a horse or horses: the horse family; a horse blanket. 2. drawn or powered by a horse or horses.
3. mounted or serving on horses: horse troops. 4. unusually large.