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[throm-bin] /ˈθrɒm bɪn/
noun, Biochemistry
an enzyme of the blood plasma that catalyzes the conversion of fibrinogen to fibrin, the last step of the blood clotting process.
Origin of thrombin
1895-1900; thromb(us) + -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for thrombin


(biochem) an enzyme that acts on fibrinogen in blood causing it to clot
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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thrombin in Medicine

thrombin throm·bin (thrŏm'bĭn)
An enzyme in blood formed from prothrombin that facilitates blood clotting by reacting with fibrinogen to form fibrin. Also called thrombase.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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thrombin in Science
An enzyme in blood that catalyzes the conversion of fibrinogen to fibrin and is essential to the coagulation of blood.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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