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M____________
Definitions
so small as to be invisible without a microscope
Word origin
From microscope + -ical. Compare microscopic.
Used in a sentence
“I have observed in green Wood all those long Microscopical pores which appear in Charcoal perfectly empty of any thing but Air.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer0 curated clues
No curated clues for microscopical yet.