node (nəʊd)  
—n  
1.  a knot, swelling, or knob 
2.  the point on a plant stem from which the leaves or lateral branches grow 
3.  physics See also standing wave Compare antinode a point at which the amplitude of one of the two kinds of displacement in a standing wave has zero or minimum value. Generally the other kind of displacement has its maximum value at this point 
4.  maths Also called: crunode a point at which two branches of a curve intersect, each branch having a distinct tangent 
5.  maths, linguistics one of the objects of which a graph or a tree consists; vertex 
6.  astronomy either of the two points at which the orbit of a body intersects the plane of the ecliptic. When the body moves from the south to the north side of the ecliptic, it passes the ascending node; moving from the north to the south side, it passes the descending node 
7.  anatomy 
a. any natural bulge or swelling of a structure or part, such as those that occur along the course of a lymphatic vessel (lymph node)  
b. a finger joint or knuckle  
8.  computing an interconnection point on a computer network 
[C16: from Latin nōdus knot] 
node (nōd)
n.
A knob, knot, protuberance, or swelling.
A protuberant growth or swelling in a tissue.
A knuckle or finger joint.
node (nōd) Pronunciation Key

node
n.