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.
At the end of the 30-minute visit, Urban's doctor showed her the AI summary of the appointment, neatly organized into sections for her medical history, the physical exam findings and an assessment and treatment plan for her rheumatoid arthritis and hot flashes, among other details. Michelle Andrews, ABC News, 26 Jan. 2026 The former kindergarten teacher has severe rheumatoid arthritis, and has been trapped for weeks on the 19th floor of her Kyiv tower block, 650 steps from the ground. Derek Gatopoulos, Los Angeles Times, 25 Jan. 2026 The presence of these markers indicates that autoimmunity is occurring, yet the body and organs are still functioning well, and a person who is at risk of getting rheumatoid arthritis may not feel sick yet. Kevin Deane, The Conversation, 23 Jan. 2026 The company is known for medications including Humira, which is used to treat rheumatoid arthritis, Crohn’s disease, ulcerative colitis and other conditions, as well as the drugs Skyrizi, which treats plaque psoriasis, and Rinvoq for rheumatoid arthritis. Lisa Schencker, Chicago Tribune, 13 Jan. 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 1 Feb. 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

More from Merriam-Webster on rheumatoid arthritis

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