fibrosis

noun

fi·​bro·​sis fī-ˈbrō-səs How to pronounce fibrosis (audio)
: a condition marked by increase of interstitial fibrous tissue
fibrotic
fī-ˈbrä-tik How to pronounce fibrosis (audio)
adjective

Examples of fibrosis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
She had been diagnosed with terminal cancer, and also battled the degenerative disease, idiopathic pulmonary fibrosis, since 2014. — Raechal Shewfelt, Entertainment Weekly, 29 Oct. 2026 However, for someone with a preexisting condition such as pulmonary fibrosis – where the tissue of the lungs has stiffened and can no longer stretch to full capacity – a viral infection may make their condition worse. — Karin Wuertz-Kozak, The Conversation, 27 Oct. 2026 The workers named in the lawsuits were diagnosed with a range of illnesses, including COPD, kidney disease, pulmonary fibrosis, multiple myeloma, leukemia and cancers of the throat and blood. — Madison Smalstig, Sacbee.com, 17 Oct. 2026 Syndax Pharmaceuticals — Shares tumbled 16% after the company said axatilimab did not meet its primary endpoint during a Phase 2 trial in which the antibody was used to treat idiopathic pulmonary fibrosis. — Darla Mercado, Cfp®,fred Imbert, CNBC, 13 Oct. 2026 See All Example Sentences for fibrosis

Word History

Etymology

New Latin

First Known Use

1873, in the meaning defined above

Time Traveler
The first known use of fibrosis was in 1873

Phrases Containing fibrosis

Rhymes for fibrosis

See All Rhymes for fibrosis

Browse Nearby Words

fibrosarcoma
fibrosis
fibrositis
See all Nearby Words

Cite this Entry

“Fibrosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibrosis. Accessed 30 Oct. 2026.

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Kids Definition

fibrosis

noun
fi·​bro·​sis fī-ˈbrō-səs How to pronounce fibrosis (audio)
: an abnormal bodily condition in which increased amounts of fibrous tissue form in other tissues compare cystic fibrosis

Medical Definition

fibrosis

noun
fi·​bro·​sis fī-ˈbrō-səs How to pronounce fibrosis (audio)
plural fibroses -ˌsēz How to pronounce fibrosis (audio)
: a condition marked by increase of interstitial fibrous tissue : fibrous degeneration

More from Merriam-Webster on fibrosis

Britannica.com: Encyclopedia article about fibrosis

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