S0962850 (sĭ-năp′tə-sōm′)n. Any of various sacs, composed of synaptic vesicles and mitochondria, that break away from axon terminals at a synapse after brain tissue has been homogenized under controlled conditions.syn·ap′to·so′mal adj.
synaptosomal
(ˌsɪnæptəˈsəʊməl) adj (Physiology) pertaining to a synaptosomeMedicalSeesynaptosome