the junction between two neurons (axon-to-dendrite) or between a neuron and a muscle; "nerve impulses cross a synapse through the action of neurotransmitters"
a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tubelike structure extending from the base of the brain through the vertebral canal to the upper lumbar region
admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion; "unequivocal evidence"; "took an unequivocal position"; "an unequivocal success"; "an unequivocal promise"; "an unequivocal (or univocal) statement"
a poor densely populated city district occupied by a minority ethnic group linked together by economic hardship and social restrictions
formerly the restricted quarter of many European cities in which Jews were required to live; "the Warsaw ghetto"
any segregated mode of living or working that results from bias or stereotyping; "the relative security of the gay ghetto"; "no escape from the ghetto of the typing pool"