micrograph

noun

1. an instrument for executing extremely minute writing or engraving.
2. Optics. a photograph taken through a microscope or a drawing of an object as seen through a microscope.

noun

1. a photograph or drawing of an object as viewed through a microscope
2. an instrument or machine for producing very small writing or engraving

n.

1. A drawing or photographic reproduction of an object as viewed through a microscope.
2. An instrument for measuring minute movements by recording photographically corresponding movements registered by a diaphragm moving in unison with the original object.

1. A drawing or photograph taken from an image formed by a microscope.