a crystalline insoluble optically active compound, used as a rodenticide and, in the form of its sodium salt, as a medical anticoagulant. Formula: C19H16O4
Word origin
C20: from the patent owners W(isconsin) A(lumni) R(esearch) F(oundation) + (coum)arin
warfarin in American English
(ˈwɔrfərɪn)
US
noun
1.
a colorless, odorless, tasteless rat poison, C19H16O4, a crystalline powder that causes fatal internal bleeding in rodents
2.
this drug neutralized with sodium hydroxide, used in medicine as an anticoagulant