N

Nerve

The simplicial complex formed from a family of objects by taking sets of objects that have a nonempty mutual intersection.

Node

In a graph, the nodes (aka vertices) are the points which are connected by edges.

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z

An On-line Dictionary of Combinatorics