ringbone

[ ring-bohn ]

/ ˈrɪŋˌboʊn /

a morbid bony growth on the pastern bones of a horse, often resulting in lameness.

Origin of ringbone

First recorded in 1515–25; ring¹ + bone

The importance of a ringbone depends on its seat and often on its size.

Special Report on Diseases of the Horse |United States Department of Agriculture
For spavin or ringbone, cut the hair away and grease the part well with the ointment, rubbing it in well.

One Thousand Secrets of Wise and Rich Men Revealed |C. A. Bogardus
The affected animals require a month to three months' time for recovery to take place in the average favorable cases of ringbone.

Lameness of the Horse |John Victor Lacroix
A ringbone, when on the front of the foot, even when not very largely developed, assumes the form of a diffused convex swelling.

Special Report on Diseases of the Horse |United States Department of Agriculture

I had examined blue, felt of his muscles, and made up my mind that by and by he would have ringbone on his left fore leg.

Daughters of the Revolution and Their Times |Charles Carleton Coffin

ringbone

/ (ˈrɪŋˌbəʊn) /

an abnormal bony growth affecting the pastern of a horse, often causing lameness