spavin
nounBog spavin.
nounBone spavin.
nounA disease of horses affecting the hock-joint, or joint of the hind leg between the knee and the fetlock. See bog-spavin, bloodspavin, bone-spavin.
nounIn coal-mining, the clay underlying the coal. Also called under-clay, coal-clay, seat, seat-clay, etc.
nounA disease of horses characterized by a bony swelling developed on the hock as the result of inflammation of the bones; also, the swelling itself. The resulting lameness is due to the inflammation, and not the bony tumor as popularly supposed.
nouna soft swelling produced by distention of the capsular ligament of the hock; — called also
spavin attended with exostosis; ordinary spavin.
nounA
a swelling of the hock joint of a horse; resulting in lameness