This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. The study of the structure of metals and alloys, especially by optical and electron microscopy and x-ray diffraction.

n. The study of the structure of metals and their alloys, by any of a variety of techniques

n. The science or art of metals and metal working; also, a treatise on metals.

n. A method of transferring impressions of the grain of wood to metallic surfaces by chemical action.

n. A substitute for lithography, in which metallic plates are used instead of stone.

n. An account of metals, or a treatise on metallic substances; the science of metals.

n. A process of decorating metals.

n. A method of engraving, allied to lithography, in which metallic plates are substituted for stones.

"If you don't already know, metallography is a type of scientific microimaging that involves mirror-polishing metal surfaces and then etching them with various reagents to reveal their microstructures, which are often of breathtaking beauty."

metalline    neurosurgery    mutuality    metallurgist    agglomerate