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n. Degeneration of bone into a hard, ivorylike mass, as that which occurs at the articular surfaces of bones in osteoarthritis.

n. Degenerative process of bone occurring at sites of articular cartilage erosion commonly found in patients with osteoarthritis. Sub-chondral bone responds to increased friction by generating reactive, ivory-like, dense bone at the site of erosion.

n. A condition of bone cartilage occurring in certain diseases of these tissues, in which they acquire an unnatural density, and come to resemble ivory.

n. In pathology, a morbid change in bone by which it becomes very hard and dense, like ivory, as in arthritis deformans.

n. a change that occurs in degenerative joint disease in which bone is converted into a dense smooth substance resembling ivory

"'eburnation' -- that is a sort of porcelain-like polish that occurs on the parts of bones that form a joint when the natural covering of cartilage is destroyed by disease."

biological process    organic process