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
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"
(obsolete) a combination of elements (of dryness and warmth or of the four humors) that was once believed to determine a person's health and temperament
texture and appearance of the skin of the face
the coloring of a person's face
a point of view or general attitude or inclination; "he altered the complexion of his times"; "a liberal political complexion"
a combination that results from coupling or interlinking; "diphthongs are complexions of vowels"
give a certain color to; "The setting sun complexioned the hills"