Wow, Mikeludkip, (dumb name by the way), quit being such a d-bag. If you knew anything about anything you would realize that what indraneel is saying is essentially identical to your dumbed down wikipedia definition. You are obviously one of those people who look at the first line of the definition in a dictionary and assume from then on that is what the word means. Words have depth you idiot so don't go around flashing your "knowledge" around just because you can use wikipedia.