n. 1. A shoe for horses, consisting of a narrow plate of iron in form somewhat like the letter U, nailed to a horse's hoof. [ 1913 Webster ]

2. Anything shaped like a horsehoe, such as a U-shaped bend in a river. [ 1913 Webster ]

3. (Zool.) The Limulus or horsehoe crab. [ 1913 Webster ]

4. pl. A game in which horseshoes or horseshoe-shaped objects (usually made of metal) are thrown at either of two stakes fixed in the ground at a distance of 30 to 40 feet apart. The player stands at or near one stake and throws several the horseshoes at the other stake. Points are scored when the player throws the horseshoe so that it surrounds the stake; fewer points are scored if the horseshoe is close to but not surrounding the stake. The players take turns and the first player to achieve the target score wins; as, “almost” only counts with hand grenades or in horseshoes. [ PJC ]

Horsehoe head (Med.), an old name for the condition of the skull in children, in which the sutures are too open, the coronal suture presenting the form of a horsehoe. Dunglison. --
Horsehoe magnet, an artificial magnet in the form of a horsehoe. --
Horsehoe nail. See Horsenail. --
Horsehoe nose (Zool.), a bat of the genus Rhinolophus, having a nasal fold of skin shaped like a horsehoe. [ 1913 Webster ]

n. The act or employment of shoeing horses. [ 1913 Webster ]

n. One who shoes horses. [ 1913 Webster ]