micrograph: Meaning and Definition of

mi•cro•graph

Pronunciation: (mī'kru-graf", -gräf"), [key]
— n.
  1. an instrument for executing extremely minute writing or engraving.
  2. a photograph taken through a microscope or a drawing of an object as seen through a microscope.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.