[ throm-bin ]

  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

Words Nearby thrombin Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use thrombin in a sentence

British Dictionary definitions for thrombin


/ (ˈθrɒmbɪn) /

  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

Scientific definitions for 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.