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.
It was announced earlier this year that Mette-Marit would temporarily step back from royal duties to undergo a lung transplant after she was diagnosed with pulmonary fibrosis, a chronic progressive lung disease with a poor prognosis, in 2018. — Billy Stockwell, CNN Money, 28 Aug. 2026 In addition, Mette-Marit underwent a lung transplant in June of this year, following years of health issues related to chronic pulmonary fibrosis diagnosed in 2018. — Stefania Conrieri, Vanity Fair, 28 Aug. 2026 In October 2018, Mette-Marit revealed that she had been diagnosed with pulmonary fibrosis, a chronic lung disease caused by damaged tissue. — Emma Kershaw, PEOPLE, 28 Aug. 2026 Neither species showed the same dramatic cardiac fibrosis or massive lipofuscin buildup seen in Greenland sharks. — Melissa Cristina Márquez, Forbes.com, 1 Aug. 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 4 Sep. 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

Last Updated: - Updated example sentences
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