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

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Etymology

Origin of osteoarthritis

First recorded in 1875–80; osteo- + arthritis

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Example Sentences

See Examples For:

osteoarthritis

Whether the procedure can actually slow osteoarthritis progression remains an open question.

From Science Daily ● Oct. 14, 2026

This helps explain why osteoarthritis affecting the inside of the knee is especially common.

From Science Daily ● Oct. 11, 2026

The original study included only 68 participants, all of whom had mild to moderate osteoarthritis affecting the inner knee and demonstrated that at least one tested walking adjustment could reduce their joint loading.

From Science Daily ● Oct. 11, 2026

Research published since the 2025 trial has provided further insight into how walking modifications might help people with knee osteoarthritis.

From Science Daily ● Oct. 11, 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

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