microscopical

adj — 2 senses

microscopical

adj

Etymology From microscope + -ical. Compare microscopic.

1

Pertaining to the microscope; achieved by means of a microscope.

2

Archaic Only visible by means of a microscope; very small, microscopic.

I have observed in green Wood all those long Microscopical pores which appear in Charcoal perfectly empty of any thing but Air.1665, Robert Hooke, Micrographia, section XVIII:

Derived terms: copromicroscopical, nonmicroscopical, submicroscopical, ultramicroscopical

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.