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fibrosis

American  
[fahy-broh-sis] / faɪˈbroʊ sɪs /

noun

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


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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of fibrosis

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

She struggles with repeat infections of all kinds — ear infections, conjunctivitis, pneumonia — and the drug, which is approved to treat cystic fibrosis, has helped keep her healthy.

From MarketWatch Aug. 13, 2026

The biotech says its cystic fibrosis drug candidate missed the mark in a Phase 2a trial, though the news could be a boon to shares of Vertex Pharmaceuticals.

From Barron's Aug. 11, 2026

We also can say it of cystic fibrosis, a once-fatal illness that a pill called Trikafta has made manageable for most patients.

From The Wall Street Journal Aug. 10, 2026

People who drank more coffee had lower levels of liver fat, excess liver iron, fibrosis, and liver inflammation on MRI scans.

From Science Daily Jul. 25, 2026

I’ve been making YouTube videos for about half that time to raise awareness about cystic fibrosis.

From "Five Feet Apart" by Rachael Lippincott

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