
• (n.) A disease of the hock (sometimes of the knee) of a horse, caused by inflammation of the synovial membrane and a consequent excessive secretion of the synovial fluid; -- probably so called because there is usually an oval swelling on each side of the leg, appearing somewhat as if a pin had been thrust through.Thoroughpin: words in the de...
Found on
http://thinkexist.com/dictionary/meaning/thoroughpin/
Thor'ough·pin` noun (Far.) A disease of the hock (sometimes of the knee) of a horse, caused by inflammation of the synovial membrane and a consequent excessive secretion of the synovial fluid; -- probably so called because there is usually an oval swelling on each side of the leg, appearing somewha...
Found on
http://www.encyclo.co.uk/webster/T/47

Stress on the deep digital flexor tendon, with puffiness in the web of the hock.
Found on
http://www.thehorse.com/Glossary.xhtml?L=T
No exact match found.