fibrosis

noun

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

Examples of fibrosis in a Sentence

Recent Examples on the Web
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After a few months away from the spotlight, the royal who suffers from lung disease pulmonary fibrosis made a public appearance with her husband, Crown Prince Haakon, and their children, Prince Sverre Magnus and Princess Ingrid Alexandra. Marta Martínez Tato, Vanity Fair, 13 Apr. 2026 Just one episode per month was associated with a threefold increase in advanced liver fibrosis in people with underlying metabolic liver disease, according to research from the University of Southern California (USC). Melissa Rudy, FOXNews.com, 3 Apr. 2026 This decrease, in turn, lessens the force responsible for fibrosis, a buildup of scar tissue that harms organs. Tara Haelle, Scientific American, 17 Mar. 2026 Travis Corbitt After just a few seconds of listening to his chest, the pulmonologist diagnosed Corbitt with a condition called pulmonary fibrosis. CBS News, 21 Feb. 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

Browse Nearby Words

Cite this Entry

“Fibrosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibrosis. Accessed 25 Apr. 2026.

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

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