spiegeleisen


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spie·gel·ei·sen

 (spē′gə-lī′zən)
n.
An alloy of iron containing approximately 15 percent manganese and small quantities of carbon and silicon, used in the Bessemer process.

[German : Spiegel, mirror (from Middle High German, from Old High German spiagal, from Latin speculum; see speculum) + Eisen, iron (from Middle High German īsen, from Old High German īsan; see eis- in Indo-European roots).]

spiegeleisen

(ˈspiːɡəlˌaɪzən) or

spiegel

n
(Metallurgy) a type of pig iron that is rich in manganese and carbon
[C19: German, from Spiegel mirror + Eisen iron]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spiegeleisen - pig iron containing manganese; used as a deoxidizing agent and to raise the manganese content in making steel
pig iron - crude iron tapped from a blast furnace