node
node
1. In a geodatabase, the point
representing the beginning or ending point of an edge, topologically linked to
all the edges that meet there.
2. In a coverage, the beginning
or ending point of an arc, topologically linked to all the arcs that meet
there.
3. In a TIN, one of the three
corner points of a triangle, topologically linked to all triangles that meet
there. Each sample point in a TIN becomes a node in the triangulation that may
store elevation z-values and tag values.
4. In graph theory, any vertex
in a graph.
5. The point at which a
computer, or other addressable device, attaches to a communications network.
Time in Riyadh 
at any time
