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Medical Definition of Warfarin sodium
1. [[3-(alpha-Acetonylbenzyl)-2-oxo-2H-1-benzopyran-4-yl]oxy]sodium;an anticoagulant with the same actions as dicumarol; also used as a rodenticide; also available as the potassium salt, with the same actions and uses. Origin: Wisconsin Alumni Research Foundation + coumarin (05 Mar 2000)