negative regulation of platelet aggregation
Any process that decreases the rate, frequency or extent of platelet aggregation. Platelet aggregation is the adhesion of one platelet to one or more other platelets via adhesion molecules.
GO:0010544
negative regulation of platelet activation
is_a
GO:0034111
negative regulation of homotypic cell-cell adhesion
is_a
GO:0090330
regulation of platelet aggregation
is_a
GO:0070527
platelet aggregation
negatively_regulates
platelet disaggregation
narrow