1. 
   blood thinner
   A substance that is used to prevent and treat blood clots in blood vessels and the heart. Also called anticoagulant.
   Found op http://www.cancer.gov/dictionary?expand=B
   
   
2. 
   Blood-thinner
   Blood-thinner: A common name for an anticoagulant agent used to prevent the formation of blood clots. Blood-thinners do not really thin the blood. They prevent it from clotting. Blood-thinners (anticoagulants) have various uses. Some are used for the prophylaxis (prevention) of thromboembolic disord...
   Found op http://www.medterms.com/script/main/art.html?articlekey=2490
   
   
3. 
   blood-thinner
   Synonym for anticoagulant ... <haematology, pharmacology> Any substance that prevents blood clotting. ... Those drugs administered for prophylaxis or treatment of thromboembolic disorders are heparin, which inactivates thrombin and several other clotting factors and which must be administered ...
   Found op http://www.mondofacto.com/facts/dictionary?blood-thinner
   
   

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