fibrin

American  

[fahy-brin] / ˈfaɪ brɪn /

noun

1. the insoluble protein end product of blood coagulation, formed from fibrinogen by the action of thrombin in the presence of calcium ions.

2. Botany. a fibrinlike substance found in some plants; gluten.

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fibrin British  

/ ˈfɪbrɪn /

noun

1. a white insoluble elastic protein formed from fibrinogen when blood clots: forms a network that traps red cells and platelets

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fibrin Scientific  

/ fī′brĭn /

1. A fibrous protein produced by the action of thrombin on fibrinogen and essential to the coagulation of blood. Fibrin works by forming a fibrous network in which blood cells become trapped, thereby producing a clot.

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Other Word Forms

• fibrinous
  adjective

Etymology

Origin of fibrin

First recorded in 1790–1800; fibr- + -in ²

Compare meaning

How does fibrin compare to similar and commonly confused words? Explore the most common comparisons:

• fibrin vs. fibrinogen

Example Sentences

See Examples For:

fibrin

One result of this research is CEVAP's patented fibrin sealant, described as a "biological glue."

From Science Daily ● Nov. 18, 2025

Its amino acid sequence differs from gyroxine, a toxin taken directly from rattlesnake venom and used in fibrin sealant production.

From Science Daily ● Nov. 18, 2025

For patients who are seeking a youthful refresh, she and her nurses first suggest bio-stimulating treatments like platelet-rich fibrin matrix.

From Los Angeles Times ● Jul. 11, 2024

Platelets and blood clotting factors cause the change of the soluble protein fibrinogen to the insoluble protein fibrin at a wound site forming a plug.

From Textbooks ● Jun. 9, 2022

In the first instance, it consists to a great extent of fibrin, the result either of epithelial changes or derived directly from the exuded blood-serum.

From A System of Practical Medicine by American Authors, Vol. I Volume 1: Pathology and General Diseases by Various