noun
arthritis
ah-THRIH-tihs
noun
1
Painful inflammation and stiffness in one or more joints.
"Her arthritis makes it hard to open jars in the morning."
How to Use Arthritis
Learner’s notesIn plain EnglishA condition causing sore, swollen, and stiff joints.
Common pairings
rheumatoid arthritis
suffer from arthritis
arthritis in the knees
Word Forms
arthritides plural, arthritises plural
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Etymology
From Greek arthritis, "joint disease," from arthron, "a joint," plus the medical suffix -itis, "inflammation."