- an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- too small to be seen with an optical microscope
- of or relating to an ultramicroscope
- a microscope used for studying colloids, in which the sample is strongly illuminated from the side and colloidal particles are seen as bright points on a dark backgroundAlso called: dark-field microscope
- Too minute to be seen with an ordinary microscope.
- Of or relating to an ultramicroscope.
- A microscope with high-intensity illumination used to study very minute objects.