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.
Curcumin has been found to reduce the effects of rheumatoid arthritis (RA), a type of inflammatory, autoimmune arthritis,4 in which the synovium (lining of joints) is mistakenly attacked by the immune system. Lana Barhum, Verywell Health, 24 July 2025 Psoriatic and rheumatoid arthritis can both cause joint pain and swelling due to irregular immune system activity. Mark Gurarie, Health, 29 June 2025 The biologic has multiple indications, including rheumatoid arthritis, Crohn’s disease and psoriasis. Joshua P. Cohen, Forbes.com, 9 May 2025 Studies show postmenopausal women, particularly those with early menopause, may be at higher risk for rheumatoid arthritis, a long-term condition that causes pain, swelling and stiffness in the joints. Karina Zaiets, USA Today, 30 June 2025 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 20 Aug. 2025.

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

More from Merriam-Webster on rheumatoid arthritis

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