WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to or used in microscopy
adj. so small as to be invisible without a microscope
adj. visible under a microscope; using a microscope
Word Usage
"Through a refinement of the electronic equipment and the experimental conditions they succeeded in measuring this "microscopical" current by laborious methodological developments during the seventies (Figure 1C)."