There are tons of things that are microscopic, such as bacteria, viruses and cells. I would say that anything too small to see with the human eye would be considered "microscopic".
Yeap they are
no there macro witch means that you can see it with your eye.
a thin film that cannot be seen by the naked eye
Well there is one that is not microscopic. It's macroscopic which means it can be seen by the naked eye, the egg's yolk.