fibroblast

noun

fi·​bro·​blast ˈfī-brə-ˌblast How to pronounce fibroblast (audio) ˈfi- How to pronounce fibroblast (audio)
: a connective-tissue cell of mesenchymal origin that secretes proteins and especially molecular collagen from which the extracellular fibrillar matrix of connective tissue forms
fibroblastic adjective

Examples of fibroblast 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.
During inflammation, such as wound-healing and scar formation, fibroblasts lay down relatively disorganized structures. Alison Escalante, Forbes, 27 Feb. 2025 After a study with more than 60 twin sisters with the same genetic heritage, their scientists found that an unbalanced lifestyle can cause a 44% increase in methyl groups that act as inhibitors of genes that are present in fibroblasts and are therefore related to the youthfulness of the skin. Ana Morales, Vogue, 27 Sep. 2024 The process recruits fibroblasts, the cells that lay down scar tissue. Alison Escalante, Forbes, 27 Feb. 2025 Moreover, integrin β1 is seen to strengthen cell-substrate adhesions in fibroblasts, potentially offering an explanation for the thicker stress fibers seen in older cells. Matt Robison, Newsweek, 18 Feb. 2025 See All Example Sentences for fibroblast

Word History

Etymology

International Scientific Vocabulary

First Known Use

1876, in the meaning defined above

Time Traveler
The first known use of fibroblast was in 1876

Cite this Entry

“Fibroblast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibroblast. Accessed 27 Mar. 2025.

Medical Definition

fibroblast

noun
fi·​bro·​blast
ˈfīb-rə-ˌblast also ˈfib-
: a connective-tissue cell of mesenchymal origin that secretes proteins and especially molecular collagen from which the extracellular fibrillar matrix of connective tissue forms
fibroblastic adjective

More from Merriam-Webster on fibroblast

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