ultramicroscopic

/ˌʌltrəˌmaɪkrəˈskɑpɪk/
adjective
  1. Too small to be seen with an ordinary microscope; requiring an ultramicroscope to be visible.
    • The scientist studied ultramicroscopic particles in the solution.
    • Some viruses are ultramicroscopic and can only be detected with special equipment.
    • The dust contained ultramicroscopic fragments that were invisible to standard lenses.
  2. Extremely tiny; minuscule in scale.
    • The engineer designed ultramicroscopic circuits for the new microchip.
    • The artist created ultramicroscopic details on the head of a pin.
    • Ultramicroscopic cracks in the metal could lead to failure under stress.
Antonyms
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