fibrinogen

American  

[fahy-brin-uh-juhn] / faɪˈbrɪn ə dʒən /

noun

Biochemistry.

1. a globulin occurring in blood and yielding fibrin in blood coagulation.

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fibrinogen British  

/ ˌfaɪbrɪnəʊˈdʒɛnɪk, ˌfaɪbrɪˈnɒdʒənəs, fɪˈbrɪnədʒən /

noun

1. a soluble protein, a globulin, in blood plasma, converted to fibrin by the action of the enzyme thrombin when blood clots

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fibrinogen Scientific  

/ fī-brĭn′ə-jən /

1. A protein in the blood plasma that is essential for the coagulation of blood. It is converted to fibrin by the action of thrombin in the presence of calcium ions.

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Other Word Forms

• fibrinogenic adjective

Etymology

Origin of fibrinogen

First recorded in 1870–75; fibrino- + -gen

Compare meaning

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

• fibrin vs. fibrinogen

Example Sentences

Their experiments revealed that while Aβ and fibrinogen alone caused little harm, even small amounts of the combined complex led to major problems.

From Science Daily • Oct. 22, 2025

"But when the two complex together, you only need very small amounts of each to cause damage. There's a synergistic effect with Aβ and fibrinogen."

From Science Daily • Oct. 22, 2025

Chitosan is already used in some hemostats: its positively charged surface is known to strongly attract negatively charged platelets and fibrinogen, the two major components of a blood clot.

From Science Daily • Jan. 22, 2024

The second protein, fibrinogen, is produced in the liver and causes clotting to stop bleeding.

From Scientific American • Sep. 1, 2023

In the plasma the fibrinogen is in a liquid form; but during coagulation it changes into a white, stringy solid, called fibrin.

From Physiology and Hygiene for Secondary Schools by Walters, Francis M.