Clique (graph theory)

A clique is a group of things that are all connected to each other. In graph theory, a clique is a group of nodes (like dots) that are all connected to each other by some kind of edge. This means that each node in the clique is connected to every other node in the clique. For example, in a family, each person is connected to everyone else in the family (they are all related to each other), so the family would be an example of a clique.