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osteoarthritis
os·te·o·ar·thri·tis [ òstee ō aar thrtəss ]


noun 
Definition:
 
form of arthritis: a form of arthritis characterized by gradual loss of cartilage of the joints, usually affecting people after middle age
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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