synaptic vesicle exocytosis obsolete synaptic vesicle targeting https://github.com/geneontology/go-ontology/issues/31864 true OBSOLETE. The process in which synaptic vesicles are directed to specific destination membranes, mediated by molecules at the vesicle membrane and target membrane surfaces. GO:0016080 biological_process This term was made obsolete because the meaning of the term is ambiguous and usage has been inconsistent. The process it intended to describe is encompassed by the parent term synaptic vesicle exocytosis.