warfarin

play
noun war·fa·rin \ˈwȯr-fə-rən\

Definition of warfarin

  1. :  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

Recent Examples of warfarin from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'warfarin'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of warfarin

Wisconsin Alumni Research Foundation (its patentee) + coumarin


First Known Use: 1950


Medical Dictionary

warfarin

play
noun war·fa·rin \ˈwȯr-fə-rən\

Medical Definition of warfarin

  1. :  a crystalline anticoagulant coumarin derivative C19H16O4 related to dicumarol 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—see coumadin


Learn More about warfarin


Seen and Heard

What made you want to look up warfarin? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

clear to the understanding

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • istock-refers-to-this-as-a-tumble-of-strawberries-which-sounded-pretty-nice-to-us
  • Which is a synonym of garner?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!