arse... clique <mathematics> A maximal totally connected subgraph. Given a graph with nodes N, a clique C is a subset of N where every node in C is directly connected to every other node in C (i.e. C is totally connected), and C contains all such nodes (C is maximal). In other words, a clique contains all, and only, those nodes which are directly connected to all other nodes in the clique. Clique n : an exclusive circle of people with a common purpose [syn: coterie, ingroup, inner circle, pack, camp] Source: WordNet ® 2.0, © 2003 Princeton University .... hmmm.. so a common purpose can be anything, there doesn't have to be a reason for people to be part of a clique other than the fact that they get on and like each other. But I am not taking sides in this argument , in fact the common cause could be an argument could it not??? so infact all those having a dispute on the meaning of clique are in a sort of clique... ha haa... the clique of all the people that have the common factor of being on planet Earth?! I could go on... and on... and on... and I will... hmmm...