ultramicroscopic
adjective
- too small to be seen with an ordinary microscope
- of an ultramicroscope
See ultramicroscopic in American Heritage Dictionary 4
(ŭlˌtrə-mīˌkrə-skŏpˈĭk)
adjective- Too minute to be seen with an ordinary microscope.
- Of or relating to an ultramicroscope.
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