'Spiegel iron' definitions:
Definition of 'spiegel iron'
From: WordNet
noun
Pig iron containing manganese; used as a deoxidizing agent and to raise the manganese content in making steel [syn: spiegeleisen, spiegel, spiegel iron]
Definition of 'Spiegel iron'
From: GCIDE
- Spiegel iron \Spie"gel i`ron\ [G. spiegel mirror + E. iron.] (Metal.) A fusible white cast iron containing a large amount of carbon (from three and a half to six per cent) and some manganese. When the manganese reaches twenty-five per cent and upwards it has a granular structure, and constitutes the alloy ferro manganese, largely used in the manufacture of Bessemer steel. Called also specular pig iron, spiegel, and spiegeleisen. [1913 Webster]