antiprothrombin

antiprothrombin
An anticoagulant that inhibits or prevents the conversion of prothrombin into thrombin; examples are heparin, which is present in various tissues (especially in liver), and dicoumarin, which is isolated from partially decomposed sweet clover.

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an·ti·pro·throm·bin -(.)prō-'thräm-bən n a substance that interferes with the conversion of prothrombin to thrombin compare ANTITHROMBIN, HEPARIN

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an·ti·pro·throm·bin (an″te-) (an″ti-pro-thromґbin) 1. directed against prothrombin. 2. any of a diverse group of anticoagulants that retard the conversion of prothrombin to thrombin by any means.

Medical dictionary. 2011.

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Look at other dictionaries:

  • antiprothrombin — an·ti·pro·throm·bin …   English syllables

  • antiprothrombin — ˈ ̷ ̷(ˌ) ̷ ̷(ˌ) ̷ ̷| ̷ ̷ ̷ ̷ noun ( s) Etymology: anti (I) + prothrombin : a substance that interferes with the conversion of prothrombin to thrombin compare antithrombin, heparin …   Useful english dictionary

  • Heparin — An anticoagulant (anti clotting) medication. Heparin is useful in preventing thromboembolic complications (clots that travel from their site of origin through the blood stream to clog up another vessel). Heparin is also used in the early… …   Medical dictionary

  • antithrombin — Any substance that inhibits or prevents the effects of thrombin in such a manner that blood does not coagulate. A deficiency of a. results in impaired inhibition of coagulation factors IIa, IXa, and Xa in plasma, causing recurrent thrombosis. a.… …   Medical dictionary

  • antiprothrombic — | ̷ ̷(ˌ) ̷ ̷ at anti I+ˌ ̷ ̷| ̷ ̷ ̷ ̷ adjective : of or like that of an antiprothrombin …   Useful english dictionary

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