Main Entry: war·fa·rin Pronunciation: 'wor-f&-r&n Function: noun : a crystalline anticoagulant coumarin derivativeC19H16O4 related to dicumarol that inhibits the production of prothrombin by vitamin K and is used as a rodent poison and in medicine; also: its sodiumsalt C19H15NaO4 used especially in the prevention or treatment of thromboembolic disease —see COUMADIN
warfarin (wôr'fər-ĭn) Pronunciation Key
A white crystalline compound used as a rodenticide and as an anticoagulant in medicine. Warfarin is a derivative of coumarin. Chemical formula:C19H16O4.