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WordReference Random House Unabridged Dictionary of American English © 2024throm•bo•plas•tin (throm′bə plas′tin),USA pronunciation n. - Biochemistrya lipoprotein in the blood that converts prothrombin to thrombin.
[Pharm.]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′bō kī′nās, -kin′ās).USA pronunciation - thrombo- + -plast + -in2 1910–15
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