an·​ti·​co·​ag·​u·​lant | \ -kō-ˈa-gyə-lənt How to pronounce anticoagulant (audio) \

Definition of anticoagulant

: a substance that hinders the clotting of blood : blood thinner

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Other Words from anticoagulant

anticoagulant adjective

Examples of anticoagulant in a Sentence

Recent Examples on the Web

The proposal, which needs final approval from the various state and federal agencies, is to make two helicopter drops two to three weeks apart of food pellets laced with brodifacoum, an anticoagulant that causes rodents to bleed to death. Peter Fimrite,, "Coastal Commission to consider poisoning mice to restore balance on Farallon Islands," 10 July 2019 Federal wildlife officials proposed using helicopters to dump 2,900 pounds (1,315 kilograms) of cereal grain pellets laced with brodifacoum, an anticoagulant that causes rodents to bleed to death. Washington Post, "California asks US to end plan to drop rat poison on islands," 10 July 2019 Commissioners also expressed concern over the possibility that birds would eat the poison — an anticoagulant that causes internal bleeding. Rosanna Xia,, "Plan to dump rat poison on Farallon Islands questioned by California Coastal Commission," 10 July 2019 So the extermination industry uses anticoagulants, or blood thinners, which don’t affect rats for hours and don’t kill them for several days. Charlie Hamilton James, National Geographic, "How rats became an inescapable part of city living," 17 June 2019 Blood thinners 1941: Karl Paul Link, a professor in UW’s Department of Agriculture, develops the anticoagulant warfarin, used as a rat poison. Mark Johnson, Milwaukee Journal Sentinel, "UW scientific advances include vitamins, growing human embryonic stem cells in lab," 12 July 2018 Red blood-cells are then mixed with an anticoagulant and transfused back into the donor. The Economist, "Bans on paying for human blood distort a vital global market," 10 May 2018 One of the direct oral anticoagulants has a true antidote. Sandy Bauers,, "5 Questions: Lessons from the early death of Maroon 5 manager Jordan Feldstein," 6 Apr. 2018 Although an official cause of death has not yet been determined, an autopsy detected the presence of brodifacoum, a deadly anticoagulant used in rat poison, which has recently been found in several cases of synthetic marijuana use in Illinois. CBS News, "3 deaths tied to excessive bleeding from synthetic marijuana, possibly tainted with rat poison," 10 Apr. 2018

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

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First Known Use of anticoagulant

1886, in the meaning defined above

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Statistics for anticoagulant

Last Updated

16 Jul 2019

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Time Traveler for anticoagulant

The first known use of anticoagulant was in 1886

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More Definitions for anticoagulant



English Language Learners Definition of anticoagulant

medical : a substance that prevents blood from forming clots


an·​ti·​co·​ag·​u·​lant | \ ˌant-i-kō-ˈag-yə-lənt, ˌan-ˌtī- How to pronounce anticoagulant (audio) \

Medical Definition of anticoagulant

 (Entry 1 of 2)

: of, relating to, or utilizing anticoagulants anticoagulant therapy



Medical Definition of anticoagulant (Entry 2 of 2)

: a substance (as a drug) that hinders coagulation and especially coagulation of the blood : blood thinner

More from Merriam-Webster on anticoagulant

Britannica English: Translation of anticoagulant for Arabic Speakers Encyclopedia article about anticoagulant

Comments on anticoagulant

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


food or victuals

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