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thromboplastin

[throm-buh-plas-tin] /ˌθrɒm bəˈplæs tɪn/
noun
1.
Biochemistry. a lipoprotein in the blood that converts prothrombin to thrombin.
2.
Pharmacology. a commercial form of this substance, obtained from the brains of cattle, used chiefly as a local hemostatic and as a laboratory reagent in blood prothrombin tests.
Also called thrombokinase
[throm-boh-kahy-neys, -kin-eys] /ˌθrɒm boʊˈkaɪ neɪs, -ˈkɪn eɪs/ (Show IPA)
.
Origin
1910-1915
1910-15; thrombo- + -plast + -in2
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for thromboplastin

thromboplastin

/ˌθrɒmbəʊˈplæstɪn/
noun
1.
any of a group of substances that are liberated from damaged blood platelets and other tissues and convert prothrombin to thrombin Also called thrombokinase
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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thromboplastin in Medicine

thromboplastin throm·bo·plas·tin (thrŏm'bō-plās'tĭk)
n.
A plasma protein present in tissues, platelets, and white blood cells necessary for the coagulation of blood and, in the presence of calcium ions, necessary for the conversion of prothrombin to thrombin. Also called factor III, platelet tissue factor, thrombokinase.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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