node

noun16

1. •
   A knot, knob, protuberance or swelling.
2. •
   A leaf node.
3. •
   A computer or other device attached to a network.
4. •
   A vertex or a leaf in a graph of a network, or other element in a data structure.
5. •
   A point in a parse tree that can be assigned a syntactic category label.
6. •
   A point in a cladogram from which two clades branch, representing the presumed ancestor.
7. •
   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.
8. •
   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 South to North and N to S; their respective symbols are ☊ and ☋.
9. •
   The point at which the lines of a funicular machine meet from different angular directions.
10. •
    The point at which a curve crosses itself, being a double point of the curve. See crunode and acnode.
11. •
    A similar point on a surface, where there is more than one tangent-plane.
12. •
    A region of an electric circuit connected only by (ideal) wires (i.e. the voltage between any two points on the same node must be zero).
13. •
    A point along a standing wave where the wave has minimal amplitude.
14. •
    The word of interest in a KWIC, surrounded by left and right cotexts.
15. •
    (rare) The knot, intrigue, or plot of a dramatic work.
16. •
    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, its place in the ecliptic, etc.