shadow-casting

shadow-casting

 [shad″o-kast´ing] application of a coating of gold, chromium, or other metal for the purpose of increasing the visibility of ultramicroscopic specimens under the microscope.

shad·ow-cast·ing

(shad'ō-kast'ing), Vacuum evaporation and deposition of a film of carbon or metals such as palladium, platinum, or chromium on a contoured microscopic object to allow the object to be seen in relief with the electron microscope or sometimes with the light microscope.