microscopical Meaning, Definition & Usage

  1. adjective of or relating to or used in microscopy
    microscopic.
    • microscopic analysis
    • microscopical examination
  2. adjective satellite visible under a microscope; using a microscope
    microscopic.
  3. adjective satellite so small as to be invisible without a microscope
    microscopic.
    • differences were microscopic

WordNet

Mi`cro*scop"ic, Mi`cro*scop"ic*al adjective (Also<
  • Microscopic
  • Microscopical
)
Etymology
Cf. F. microscopique.
Definitions
  1. Of or pertaining to the microscope or to microscopy; made with a microscope; as, microscopic observation.
  2. Able to see extremely minute objects.
    Why has not man a microscopic eye? Pope.
  3. Very small; visible only by the aid of a microscope; as, a microscopic insect.

Webster 1913