"microscopically" in the adverb sense
1. microscopically
by using a microscope so as to be visible only with a microscope as seen with a microscope
"the blood was examined microscopically"
"the seeds were microscopically small"
2. microscopically
as if by using a microscope with extreme precision and attention to detail in minute detail
"every manuscript was edited microscopically"
Source: WordNet® (An amazing lexical database of English)
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