fibrosis

American  

[fahy-broh-sis] / faɪˈbroʊ sɪs /

noun

Pathology.

1. the development in an organ of excess fibrous connective tissue.

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fibrosis British  

/ faɪˈbrəʊsɪs, faɪˈbrɒtɪk /

noun

1. the formation of an abnormal amount of fibrous tissue in an organ or part as the result of inflammation, irritation, or healing

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Other Word Forms

• fibrotic adjective

Etymology

Origin of fibrosis

First recorded in 1870–75; fibr- + -osis

Example Sentences

The team is now exploring whether the same drug combination could work in more advanced stages of the disease, particularly when liver fibrosis is present.

From Science Daily • Apr. 22, 2026

"Our data shows that this approach could have serious unintended consequences later in life, increasing susceptibility to chronic liver inflammation, fibrosis and cancer."

From Science Daily • Mar. 23, 2026

The crown princess, 52, who suffers from the lung disease pulmonary fibrosis, made clear that everything depended on her state of health.

From BBC • Mar. 20, 2026

Smith, a guide dog trainer was diagnosed with pulmonary fibrosis, an incurable lung disease, in 2019 and was medically retired from her job working with children with learning difficulties.

From BBC • Mar. 20, 2026

Mom explained that she had pulmonary fibrosis, and it was getting worse, but I was seven years old, and pulmonary fibrosis were two big, grown-up words I didn’t understand.

From "Courage to Soar" by Simone Biles