fibrosis

noun

fi·​bro·​sis fī-ˈbrō-səs 

: a condition marked by increase of interstitial fibrous tissue

fibrotic

fī-ˈbrä-tik 

adjective

Examples of fibrosis in a Sentence

Recent Examples on the Web

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

In the mid-’90s, scientists found a handful of cystic-fibrosis carriers who lacked vas deferens, despite only one of their CFTR copies being mutated. —Roxanne Khamsi, The Atlantic, 15 Feb. 2026

Mette-Marit was diagnosed with pulmonary fibrosis, a chronic, progressive lung disease with a poor prognosis, in 2018 and will likely need a lung transplant, according to the royal palace. —Billy Stockwell, CNN Money, 7 Feb. 2026

One of the startup’s main efforts is a drug to tackle idiopathic pulmonary fibrosis, a condition where scar tissue forms in the lungs, making breathing difficult. —Nicholas Gordon, Fortune, 22 Jan. 2026

Word History

Etymology

New Latin

First Known Use

1873, in the meaning defined above

Phrases Containing fibrosis

• cystic fibrosis

Rhymes for fibrosis

• cirrhosis
• gliosis
• hypnosis
• ichthyosis
• ketosis
• kurtosis
• lordosis
• meiosis
• miosis
• mitosis
• mycosis
• narcosis

Kids Definition

fibrosis

noun

fi·​bro·​sis fī-ˈbrō-səs 

: 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 

plural fibroses -ˌsēz 

: a condition marked by increase of interstitial fibrous tissue : fibrous degeneration