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fibrin

[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.
Origin
1790-1800
1790-1800; fibr- + -in2
Related forms
fibrinous, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for fibrin

fibrin

/ˈfɪbrɪn/
noun
1.
a white insoluble elastic protein formed from fibrinogen when blood clots: forms a network that traps red cells and platelets
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for fibrin
n.

blood-clotting substance, 1800, from Latin fibra (see fiber) + chemical suffix -in (2). So called because it is deposited as a network of fibers that cause the blood to clot.

Online Etymology Dictionary, © 2010 Douglas Harper
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fibrin in Medicine

fibrin fi·brin (fī'brĭn)
n.
An elastic, insoluble, whitish protein derived from fibrinogen by the action of thrombin and forming an interlacing fibrous network in the coagulation of blood.


fi'brin·ous adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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fibrin in Science
fibrin
  (fī'brĭn)   
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, producing a clot.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for fibrin

an insoluble protein that is produced in response to bleeding and is the major component of the blood clot. Fibrin is a tough protein substance that is arranged in long fibrous chains; it is formed from fibrinogen, a soluble protein that is produced by the liver and found in blood plasma. When tissue damage results in bleeding, fibrinogen is converted at the wound into fibrin by the action of thrombin, a clotting enzyme. Fibrin molecules then combine to form long fibrin threads that entangle platelets, building up a spongy mass that gradually hardens and contracts to form the blood clot. This hardening process is stabilized by a substance known as fibrin-stabilizing factor, or factor XIII.

Learn more about fibrin with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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