[spee-guh l-ahy-zuh n]
- a lustrous, crystalline pig iron containing a large amount of manganese, sometimes 15 percent or more, used in making steel.
Origin of spiegeleisen
1865–70; < German, equivalent to Spiegel mirror + Eisen iron
Also called spie·gel, spiegel iron.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for spiegeleisen
A small amount is used for spiegeleisen, and the rest as a flux.
To this is added a certain quantity of 'spiegeleisen,' which is a compound of iron, carbon, and manganese.An Introduction to Machine Drawing and Design
David Allan Low
Layers of spiegeleisen, limonite and other iron ores are numerous in the Laos states, in which also antimony occurs.
Spiegeleisen, an iron which contains a natural alloy of from 10 to 12 per cent.
- a type of pig iron that is rich in manganese and carbon
C19: German, from Spiegel mirror + Eisen iron