micrographer /mī-krogˈrə-fər/ noun

A person who draws or describes microscopic objects

micrographic /mī-krə-grafˈik/ adjective

1. Relating to micrography
2. Minutely written or delineated
3. Showing intergrowth of crystalline constituents on a microscopic scale (geology)

microgˈraphy noun

1. Study with the microscope
2. The description of microscopic objects