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thrombin

[throm-bin]
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noun Biochemistry.
  1. 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

First recorded in 1895–1900; thromb(us) + -in2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for thrombin

thrombin

noun
  1. 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

thrombin in Medicine

thrombin

(thrŏmbĭn)
n.
  1. An enzyme in blood formed from prothrombin that facilitates blood clotting by reacting with fibrinogen to form fibrin.thrombase
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

thrombin in Science

thrombin

[thrŏmbĭn]
  1. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.