A microscope is a scientific instrument which makes very small objects look bigger so that more detail can be seen.
2.
See under the microscope
microscope in British English
(ˈmaɪkrəˌskəʊp)
noun
1.
an optical instrument that uses a lens or combination of lenses to produce a magnified image of a small, close object. Modern optical microscopes have magnifications of about 1500 to 2000
See also simple microscope, compound microscope, ultramicroscope
2.
any instrument, such as the electron microscope, for producing a magnified visual image of a small object
microscope in American English
(ˈmaɪkrəˌskoʊp)
noun
an instrument consisting essentially of a lens or combination of lenses, for making very small objects, as microorganisms, look larger so that they can be seen and studied