microphotograph noun 2verb 1forms 3 noun2 •A photograph so reduced in size that it must be viewed through a lens or a microscope.Microphotograph slides, however, required an expensive microscope for viewing, which make them beyond the reach of the average person. — 2007 •(nonstandard) A photograph taken through a microscope, an enlarged picture of a very small item or area: a photomicrograph. verb1 •To create such a photograph formsmicrophotographed · microphotographing · microphotographs