microscopically
🇺🇸
/ˌmaɪkrəˈskɑːpɪkli/
🇬🇧
/ˌmaɪkrəˈskɒpɪkli/
in a way that can be seen using a microscope
Biologists often examine cells microscopically to study their structure.
so small that only a microscope can show it
The virus is microscopically small and invisible to the naked eye.