Eburnation 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.

Example:


Taxonomy
Eburnation, cartilage, free encyclopedia, bone, osteoarthritis, loss, bone formation, search, Radiograph, osteoarthritic changes, proximal ends, femora, patients, non-union, ivory, reaction, erosion, degenerative disease.

Defination from the web:
eburnation at the proximal ends of two femora[1] Eburnation describes a degenerative process of bone commonly found in patients with osteoarthritis or non-union of fractures. ...