In particular, a billion is 10 9 = 1 000 000 000 in the American system and 10 12 = 1 000 000 000 000 in the European system. For 10 9, Europeans say thousand million or milliard.. Although we describe the two systems today as American or European, both systems are actually of French origin.
Definition of warfarin. : a crystalline anticoagulant coumarin derivative C19H16O4 that inhibits the production of prothrombin by vitamin K and is used as a rodent poison and in medicine; also : its sodium salt C19H15NaO4 used especially in the prevention or treatment of thromboembolic disease.
Coumadin (crystalline warfarin sodium) is a brand of anticoagulant (blood thinning) medication. âAntiâ means against and coagulant means causing blood clotting. Coumadin controls the way blood clots inside your blood vessels. Coumadin makes your blood thinner and less likely to clot.oumadin is taken as a pill each day. You will need to get regular blood tests to tell how well the medication is working. The test results help the doctor decide the dose of coumadin that will keep a balance between clotting and bleeding. Your doctor will use the results to make changes in the dose of medication.