1. a photograph of a small object or detail taken through a microscope or magnifying lens
Usage: technical; scientific
2. a very small photograph, especially one reduced in size for storage or transmission
Usage: historical; archival

Examples

• The scientist examined the microphotograph of the cell structure under magnification.
• Microphotographs of the mineral sample revealed its crystalline composition.
• The laboratory uses microphotographs to document and archive tissue samples.
• Early microphotographs of bacteria helped establish the germ theory of disease.
• The museum stored historical documents as microphotographs to preserve them.
• Researchers compared microphotographs of the two specimens to identify differences.