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spiegeleisen

American  
[spee-guhl-ahy-zuhn] / ˈspi gəlˌaɪ zən /

noun

  1. a lustrous, crystalline pig iron containing a large amount of manganese, sometimes 15 percent or more, used in making steel.


spiegeleisen British  
/ ˈspiːɡəlˌaɪzən /

noun

  1. a type of pig iron that is rich in manganese and carbon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of spiegeleisen

1865–70; < German, equivalent to Spiegel mirror + Eisen iron

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

When all the carbon is removed, then exactly enough carbon is added by introducing molten spiegeleisen to produce steel of any desired temper with the utmost certainty.

From The Harris-Ingram Experiment by Charles E. (Charles Edward) Bolton

A small amount is used for spiegeleisen, and the rest as a flux.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6 "Cockaigne" to "Columbus, Christopher" by Various

To the bath of molten metal thus obtained spiegeleisen or ferro-manganese is added to supply the required carbon and to otherwise act as in the Bessemer converter.

From The Romance of Industry and Invention by Robert Cochrane

For a spiegeleisen not more than 1 gramme of the sample should be taken, and for a ferro-manganese 0.3 gramme.

From Scientific American Supplement, No. 401, September 8, 1883 by Various

The greatest possible accuracy was thus attainable in delivering definite quantities of molten iron into the converter for a given blow, also of spiegeleisen.

From The Harris-Ingram Experiment by Charles E. (Charles Edward) Bolton

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