rheumatoid

American  

[roo-muh-toid] / ˈru məˌtɔɪd /

Sometimes rheumatoidal

adjective

1. resembling rheumatism.

2. rheumatic.

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rheumatoid British  

/ ˈruːməˌtɔɪd /

adjective

1. (of the symptoms of a disease) resembling rheumatism

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Other Word Forms

• rheumatoidally adverb

Etymology

Origin of rheumatoid

1855–60; < Greek rheumat- (stem of rheûma; rheum ) + -oid

Example Sentences

The findings open the possibility of clinical trials to test sEH inhibitors as treatments for diseases such as rheumatoid arthritis and cardiovascular disease.

From Science Daily • Feb. 19, 2026

Researchers compared these patients with people of similar age and sex who were diagnosed with other long-term conditions, including rheumatoid arthritis, chronic kidney disease, and osteoporosis.

From Science Daily • Feb. 11, 2026

Lilly confirmed earlier this month that it had halted the development of a drug candidate for B cell-driven diseases, which had been in mid-stage studies for multiple sclerosis and rheumatoid arthritis.

From Barron's • Feb. 9, 2026

Burlington, Mass.-based Lifordi is targeting rheumatoid arthritis, which causes inflammation and pain in the joints and affected 18 million people worldwide in 2019, according to the World Health Organization.

From The Wall Street Journal • Dec. 26, 2025

The survival mechanism has become the enemy, as in such illnesses as lupus and rheumatoid arthritis that can attack organs, joints, even the brain.

From "A Deadly Wandering: A Mystery, a Landmark Investigation, and the Astonishing Science of Attention in the Digital Age" by Matt Richtel