noun A bony swelling which develops in a horse's leg where the shank and splint bone meet, caused by inflammation of the cartilage connecting those bones; also, a similar swelling caused by inflammation of the hock bones.
noun A bony swelling which develops in a horse's leg where the shank and splint bone meet, caused by inflammation of the cartilage connecting those bones; also, a similar swelling caused by inflammation of the hock bones.
noun A disease of horses caused by this bony swelling (etymology 1, noun sense 1.1).
noun A similar disease causing a person's leg to be lame.
verb To cause (a horse or its leg) to have spavin (noun etymology 1, noun sense 1.2).
verb To impair or injure (someone or something).
noun The stratum of earth underneath a coal deposit.