Term Name:	synaptic vesicle
Synonyms:	docked vesicle
Definition:	A secretory organelle, typically 50 nm in diameter, of presynaptic nerve terminals; accumulates in high concentrations of neurotransmitters and secretes these into the synaptic cleft by fusion with the 'active zone' of the presynaptic plasma membrane.
Ontology:	GO: Cellular Component [GO:0008021]    QuickGO    AmiGO