Microscopical

adj

adj ·Rare ·Advanced level

Definitions

Adjective
  1. 1
    Pertaining to the microscope; achieved by means of a microscope.
  2. 2
    Only visible by means of a microscope; very small, microscopic. archaic

    "I have observed in green Wood all those long Microscopical pores which appear in Charcoal perfectly empty of any thing but Air."

Adjective
  1. 1
    so small as to be invisible without a microscope wordnet
  2. 2
    visible under a microscope; using a microscope wordnet
  3. 3
    of or relating to or used in microscopy wordnet

Synonyms

All synonyms
microscopicmicroscopicvisible

Example

More examples

"I have observed in green Wood all those long Microscopical pores which appear in Charcoal perfectly empty of any thing but Air."

Etymology

From microscope + -ical. Compare microscopic.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.