Of, or relating to microscopes or microscopy; microscopal
We supply all microscopic stains and other materials.
So small that it can only be seen using a microscope.
The water was full of microscopic organisms.
Very small; minute
Compared to the galaxy, we are microscopic in scale.
Carried out with great attention to detail.
The police carried out a microscopic search of the crime scene.
Able to see extremely minute objects.
Why has not man a microscopic eye? — Alexander Pope.