| 1. | Biochemistry. a polysaccharide, occurring in various tissues, esp. the liver, and having anticoagulent properties. |
| 2. | Pharmacology. a commercial form of this substance, obtained from the liver and lungs of domesticated food animals, that when injected into the blood prevents coagulation: used chiefly in the treatment of thrombosis. |
heparin hep·a·rin (hěp'ər-ĭn)
n.
A complex organic acid that is found especially in lung and liver tissue, has a mucopolysaccharide as its active constituent, prevents platelet agglutination and blood clotting, and is used in the form of its sodium salt in the treatment of thrombosis.
| heparin (hěp'ər-ĭn) Pronunciation Key
An acidic glycosaminoglycan found especially in lung and liver tissue that prevents the clotting of blood and is used intravenously in the treatment of thrombosis and embolism. |