Noun
osteochondritis dissecans
(medicine) A disorder of the joints in which cracks form in the articular cartilage and the underlying subchondral bone.
Date unknown * Franz König publishes "Über freie Körper in den Gelenken" in the medical journal Deutsche Zeitschrift für Chirurgie, describing (and naming) the disease Osteochondritis dissecans for the first time. Source: Internet