osteoarthritis

American  

[os-tee-oh-ahr-thrahy-tis] / ˌɒs ti oʊ ɑrˈθraɪ tɪs /

noun

Pathology.

1. the most common form of arthritis, usually occurring after middle age, marked by chronic breakdown of cartilage in the joints leading to pain, stiffness, and swelling.

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osteoarthritis British  

/ ˌɒstɪəʊɑːˈθraɪtɪs /

noun

1. Also called: degenerative joint disease.  chronic inflammation of the joints, esp those that bear weight, with pain and stiffness

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osteoarthritis Scientific  

/ ŏs′tē-ō-är-thrī′tĭs /

1. A form of arthritis, occurring mainly in older people, that is characterized by chronic degeneration of the cartilage of the joints.

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Other Word Forms

• osteoarthritic
  adjective

Etymology

Origin of osteoarthritis

First recorded in 1875–80; osteo- + arthritis

Example Sentences

See Examples For:

osteoarthritis

Dr. Diana Girnita, founder and CEO of Rheumatologist OnCall, a telemedicine practice in more than 20 states, has seen patients with conditions like rheumatoid arthritis, gout, psoriasis, and knee and hip osteoarthritis seek out GLP-1s.

From The Wall Street Journal ● Sep. 18, 2026

America’s population is aging, which means the number of people with osteoarthritis keeps rising.

From The Wall Street Journal ● Sep. 13, 2026

By walking the same path they’ve already set for other diseases, the FDA’s regulators could give osteoarthritis patients a breakthrough in preventive medicine.

From The Wall Street Journal ● Sep. 13, 2026

Although persistent knee discomfort can have many causes, osteoarthritis is one of the most common.

From Science Daily ● Aug. 20, 2026

Figure 217, taken from Hutchinson's "Archives of Surgery," represents an extreme case of deformity of the knee-joints in a boy of seven, the result of severe osteoarthritis.

From Anomalies and Curiosities of Medicine by Walter L. (Walter Lytle) Pyle