definition of
[node]

[1] #1 node n. a connecting point at which several lines come together. wn

[2] #2 node n. [knob, thickening] any thickened enlargement. wn

[3] #3 node n. [leaf node] (botany) the small swelling that is the part of a plant stem from which one or more leaves emerge. wn

[4] #4 node n. (physics) the point of minimum displacement in a periodic system. wn

[5] #5 node n. (astronomy) a point where an orbit crosses a plane. wn