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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The 52-year-old wife of Crown Prince Haakon, the heir to the Norwegian throne, was diagnosed with pulmonary fibrosis in 2018, a chronic disease that causes scarring in the lungs and leads to a reduced oxygen uptake. CNN Money, 17 June 2026 The crown princess, who has pulmonary fibrosis and is awaiting a lung transplant, has been at the center of legal arguments over whether her son should be granted temporary release from custody before the verdict. ABC News, 15 June 2026 Monday's verdict was delivered amid difficult personal circumstances for Mette-Marit, who needs a lung transplant for pulmonary fibrosis. Gwladys Fouche, USA Today, 15 June 2026 Mette-Marit, 52, was diagnosed with chronic pulmonary fibrosis in 2018. Meredith Kile, PEOPLE, 5 June 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 19 Jun. 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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