node
121northern node — Node Node (n[=o]d), n. [L. nodus; perh. akin to E. knot. Cf. {Noose}, {Nowed}.] 1. A knot, a knob; a protuberance; a swelling. [1913 Webster] 2. Specifically: (a) (Astron.) One of the two points where the orbit of a planet, or comet, intersects… …
122node/command, control, communications, and computers node — The physical and functional grouping of communications and computer systems that provide terminating, switching, and gateway access services to support information exchange. See also common operating environment; global grid …
123Aschoff node — node of Aschoff and Tawara nodus atrioventricularis …
124node of Ranvier — Etymology: Louis A. Ranvier died 1922 French histologist Date: circa 1885 a small gap in the myelin sheath of a myelinated nerve fiber …
125node of Ranvier — A region of exposed neuronal plasma membrane in a myelinated axon. Nodes contain very high concentrations of voltage gated ion channels, and are the site of propagation of action potentials by saltatory conduction …
126node of Ranvier — /rahn vyay , rahn vyay/, Cell Biol. a gap occurring at regular intervals between segments of myelin sheath along a nerve axon. [1880 85; after Louis Antoine Ranvier (1835 1922), French histologist, who described it in 1878] * * * …
127node of Ranvier — noun A small constriction in the myelin sheath of axons …
128node of Ranvier — one of the gaps that occur at regular intervals in the myelin sheath of medullated nerve fibres, between adjacent Schwann cells …
