fibroblast
noun
fi·bro·blast
ˈfī-brə-ˌblast 
ˈfi-
ˈfi-
: a connective-tissue cell of mesenchymal origin that secretes proteins and especially molecular collagen from which the extracellular fibrillar matrix of connective tissue forms
Examples of fibroblast in a Sentence
Recent Examples on the Web
Platelets in the blood form clots, white cells are summoned, dead cells are cleared away, and a cascade of chemical signals sounds the alarm to draw in units known as fibroblasts.
—
Mike McRae 28,
New Atlas,
28 June 2026
Remove fibroblasts from a petri dish, and skin stem cells struggle to grow.
—
Peter Jurich,
Hartford Courant,
22 June 2026
Among the many things that occur in this phase, specialized cells called fibroblasts produce collagen that helps create structural suppors for new tissue.
—
Beth Mole,
ArsTechnica,
24 Apr. 2026
The process activates fibroblasts, or the skin cells responsible for collagen and elastin production, skin structure, and wound healing.
—
Erica Sweeney,
Time,
9 Apr. 2026
See All Example Sentences for fibroblast
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Mike McRae 28,
New Atlas,
28 June 2026
Remove fibroblasts from a petri dish, and skin stem cells struggle to grow.
—
Peter Jurich,
Hartford Courant,
22 June 2026
Among the many things that occur in this phase, specialized cells called fibroblasts produce collagen that helps create structural suppors for new tissue.
—
Beth Mole,
ArsTechnica,
24 Apr. 2026
The process activates fibroblasts, or the skin cells responsible for collagen and elastin production, skin structure, and wound healing.
—
Erica Sweeney,
Time,
9 Apr. 2026
See All Example Sentences for fibroblast
Cite this Entry
“Fibroblast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fibroblast. Accessed 6 Jul. 2026.
Copy CitationMedical 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
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