warfarin
noun /ˈwɔːfərɪn/
/ˈwɔːrfərɪn/
[uncountable]- a substance that is used as a poison to kill rats and also for people as a medicine to make the blood thinner, for example in the treatment of thrombosisWord Origin1950s: from the initial letters of Wisconsin Alumni Research Foundation + -arin on the pattern of coumarin.