[mi.cro.scop.ic] or mi.cro.scop.i.cal adj (1732) 1: resembling a microscope esp. in perception
2. a: invisible or indistinguishable without the use of a microscope b: very small or fine or precise
3: of, relating to, or conducted with the microscope or microscopy -- mi.cro.scop.i.cal.ly adv