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Definition of rheumatoid arthritis noun from the Oxford Advanced American Dictionary


rheumatoid arthritis

NAmE//ˌrumətɔɪd ɑrˈθraɪt̮əs//
[uncountable] (medical)
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a disease that gets worse over a period of time and causes painful swelling and permanent damage in the joints of the body, especially the fingers, wrists, feet, and ankles
See the Oxford Advanced Learner's Dictionary entry: rheumatoid arthritis