A substance that manifests a lytic or agglutinative action on the blood platelets, thereby inhibiting or destroying the effects of the latter.
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an·ti·plate·let -'plāt-lət adj acting against or destroying blood platelets <\antiplatelet drugs>
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an·ti·plate·let (an″te-) (an″ti-plātґlət) directed against or destructive to blood platelets; called also antithrombocytic. See also platelet inhibitor, under inhibitor.Medical dictionary. 2011.