thromboplastin

[ throm-buh-plas-tin ]
/ ˌθrɒm bəˈplæs tɪn /

noun

Biochemistry. a lipoprotein in the blood that converts prothrombin to thrombin.
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 throm·bo·ki·nase [throm-boh-kahy-neys, -kin-eys] /ˌθrɒm boʊˈkaɪ neɪs, -ˈkɪn eɪs/.

Origin of thromboplastin

First recorded in 1910–15; thrombo- + -plast + -in2

Words nearby thromboplastin

thrombophilia, thrombophlebitis, thrombophlebitis migrans, thromboplastic, thromboplastid, thromboplastin, thrombopoiesis, thrombopoietin, thrombose, thrombose par effort, thrombosed

British Dictionary definitions for thromboplastin

thromboplastin
/ (ˌθrɒmbəʊˈplæstɪn) /

noun

any of a group of substances that are liberated from damaged blood platelets and other tissues and convert prothrombin to thrombin Also called: thrombokinase

Medical definitions for thromboplastin

thromboplastin
[ thrŏm′bō-plăs′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. factor III platelet tissue factor thrombokinase