D defs.my
Entry 3 senses Webster, 1913

Metallography

· Met·al·log·ra·phy · IPA
01 n. The science or art of metals and metal working; also, a treatise on metals.
  1. 1.
    The science or art of metals and metal working; also, a treatise on metals.
  2. 2.
    A method of transferring impressions of the grain of wood to metallic surfaces by chemical action.
  3. 3.
    A substitute for lithography, in which metallic plates are used instead of stone.