shacklebone
/ˈʃækəlˌboʊn/
noun
- A bone in the leg of a horse or other animal, located between the fetlock and the pastern; also called the long pastern bone.
- The veterinarian examined the horse's shacklebone for any signs of fracture.
- A strong shacklebone is important for a racehorse's speed and stability.
- The farrier explained that the shacklebone connects the hoof to the lower leg.