Forestier disease: A form of degenerative arthritis characteristically associated with flowing calcification along the sides of the vertebrae of the spine and commonly with inflammation (tendinitis) and calcification of the tendons at their attachments points to bone.

Because areas of the spine and tendons can become inflamed, nonsteroidal antiinflammatory drugs (NSAIDs) such as ibuprofen can be helpful in relieving both pain and inflammation.

Forestier disease is also called diffuse idiopathic skeletal hyperostosis (DISH).