arthritis

noun

ar·​thri·​tis är-ˈthrī-təs How to pronounce arthritis (audio)
plural arthritides är-ˈthri-tə-ˌdēz How to pronounce arthritis (audio)
: inflammation of joints due to infectious, metabolic, or constitutional causes
also : a specific arthritic condition

Examples of 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.
Junior vividly remembers his father struggling tirelessly to support the family as a campesino (agricultural worker), an electrician and more, while his mother, who had worked as a bank clerk in Mexico, cleaned hotel rooms despite her arthritis. Isabela Raygoza, Billboard, 5 Mar. 2026 Exploratory surgery showed damage to the tendon and septic arthritis. Tyler Freel, Outdoor Life, 4 Mar. 2026 That’s especially true for people who are older, who live with disease or disability, and who have arthritis or osteoporosis. Adam Cohen, Oklahoman, 3 Mar. 2026 James, who played after initially being listed as questionable because of arthritis in his left foot, scored 24 points in 27 minutes on eight-for-15 shooting. Broderick Turner, Los Angeles Times, 2 Mar. 2026 See All Example Sentences for arthritis

Word History

Etymology

borrowed from Late Latin arthrītis "pain in the joints," borrowed from Greek arthrītid-, arthrîtis "of the joints" (arthrîtis nósos "disease of the joints"), (as a noun) "gout," from árthron "joint, articulation" + -ītis -itis — more at arthro-

First Known Use

1543, in the meaning defined above

Time Traveler
The first known use of arthritis was in 1543

Browse Nearby Words

Cite this Entry

“Arthritis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arthritis. Accessed 10 Mar. 2026.

Kids Definition

arthritis

noun
ar·​thri·​tis är-ˈthrīt-əs How to pronounce arthritis (audio)
: inflammation of the joints
arthritic
-ˈthrit-ik
adjective or noun

Medical Definition

arthritis

noun
ar·​thri·​tis är-ˈthrīt-əs How to pronounce arthritis (audio)
plural arthritides -ˈthrit-ə-ˌdēz How to pronounce arthritis (audio)
: inflammation of joints due to infectious, metabolic, or constitutional causes
also : a specific arthritic condition (as gouty arthritis or psoriatic arthritis)

More from Merriam-Webster on arthritis

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