Node

From Latin nodus (""), cognate of English knot.

Full definition of node

(plural nodes)

A knot, knob, protuberance or swelling.
(astronomy) The point where the orbit of a planet, as viewed from the Sun, intersects the ecliptic. The ascending and descending nodes refer respectively to the points where the planet moves from S to N and N to S. The respective symbols are â˜Š and â˜‹.
(botany) A stem node.
(computer networking) A computer or other device attached to a network.
(computing theory) A vertex or a leaf in a graph of a network, or other element in a data structure.
(engineering) The point at which the lines of a funicular machine meet from different angular directions; -- called also knot.
(geometry) The point at which a curve crosses itself, being a double point of the curve. See Crunode, and Acnode.
(graph theory) A vertex of a graph.
(medicine) A hard concretion or incrustation which forms upon bones attacked with rheumatism, gout, or syphilis; sometimes also, a swelling in the neighborhood of a joint.
(music) One of the fixed points of a sonorous string, when it vibrates by aliquot parts, and produces the harmonic tones; nodal line or point.
(rare) The knot, intrigue, or plot of a piece.
(technical) A hole in the gnomon of a sundial, through which passes the ray of light which marks the hour of the day, the parallels of the Sun's declination, his place in the ecliptic, etc.