Medical Definition of osteoarthritis
plural osteoarthrithritides \-ˈthrit-ə-ˌdēz\play
: a common form of arthritis typically with onset during middle or old age that is characterized by progressive degenerative changes in the cartilage of one or more joints (as of the knees, hips, and hands) accompanied by thickening and overgrowth of adjacent bone and that is marked symptomatically chiefly by stiffness, swelling, pain, deformation of joints, and loss of range of motion—abbreviation OA; called also , , ; compare rheumatoid arthritis
Seen and Heard
What made you want to look up osteoarthritis? Please tell us where you read or heard it (including the quote, if possible).