rheumatoid arthritis

noun

: a usually chronic autoimmune disease that is characterized especially by pain, stiffness, inflammation, swelling, and sometimes destruction of joints
abbreviation RA
compare osteoarthritis

Examples of rheumatoid arthritis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Still, as Norstella’s Chancellor notes, what goes up eventually comes down, and newer breakthroughs are likely to be in more niche areas, like myasthenia gravis, rather than mega-blockbusters for common ailments like rheumatoid arthritis. Amy Feldman, Forbes.com, 8 July 2026 Enbrel partially suppresses the immune system, reducing damage from rheumatoid arthritis and five other diseases where the body attacks its own tissues. Meg Wingerter, Denver Post, 7 July 2026 After four weeks, those with moderate-to-severe depression and low-grade inflammation who took tocilizumab (commonly sold under the brand name Actemra), an immunosuppressant used to treat rheumatoid arthritis by lowering a specific type of inflammation, seemed to notch improvements. Helen Carefoot, Flow Space, 17 June 2026 The sandals have become a favorite among shoppers dealing with everything from general foot fatigue to more serious conditions like rheumatoid arthritis and posterior tendonitis. Jill Layton, PEOPLE, 16 June 2026 See All Example Sentences for rheumatoid arthritis

Word History

First Known Use

1859, in the meaning defined above

Time Traveler
The first known use of rheumatoid arthritis was in 1859

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Cite this Entry

“Rheumatoid arthritis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rheumatoid%20arthritis. Accessed 12 Jul. 2026.

Medical Definition

rheumatoid arthritis

noun
: a usually chronic disease that is considered an autoimmune disease and is characterized especially by pain, stiffness, inflammation, swelling, and sometimes destruction of joints
abbreviation RA

called also atrophic arthritis

compare osteoarthritis

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