spiegeleisen
Americannoun
noun
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.
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
Manganese itself has a value for steel-making; or, rather, for the making of spiegeleisen and ferro-manganese, which are used in the Bessemer and Siemens processes.
From A Text-book of Assaying: For the Use of Those Connected with Mines. by Cornelius Beringer
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
If steel was wanted a small amount of carbon, usually in the form of spiegeleisen, was introduced into the converter before the process was complete.
From Inventions in the Century by William Henry Doolittle
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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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
