an·​ti·​plate·​let ˌan-tē-ˈplāt-lət How to pronounce antiplatelet (audio)
: preventing or inhibiting platelets from adhering to each other
The drugʼs antiplatelet activity reduces the risk of blood clot formation in stroke survivors.

Example Sentences

Recent Examples on the Web Regardless of the age, people who were on beta blockers and antiplatelet medications had a number of heart attacks, explained Chen. Bydr. Lily Nedda Dastmalchi, ABC News, 20 Aug. 2022 Aspirin is an antiplatelet agent that interferes with blood clotting. cleveland, 23 May 2022 All showed high levels of antiplatelet factor 4 antibodies, which are implicated in autoimmune thrombocytopenia. Melissa Healy, Los Angeles Times, 13 Apr. 2021 Patients infected with the virus suffer a greater chance of blood clots due to hyper-reactive platelets, and aspirin is an antiplatelet agent. Peter Aitken, Fox News, 8 Nov. 2020

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

Word History

First Known Use

circa 1923, in the meaning defined above

Time Traveler
The first known use of antiplatelet was circa 1923

Dictionary Entries Near antiplatelet

Cite this Entry

“Antiplatelet.” Dictionary, Merriam-Webster, Accessed 8 Dec. 2022.

Medical Definition


an·​ti·​plate·​let -ˈplāt-lət How to pronounce antiplatelet (audio)
: acting against or destroying blood platelets
antiplatelet drugs
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