spiegeleisen

noun spie·gel·ei·sen \ˈspē-gə-ˌlī-z^ən\

Definition of SPIEGELEISEN

: a composition of iron that contains 15 to 30 percent manganese and 4.5 to 6.5 percent carbon

spie·gel·ei·sen also spie·gel \ˈspē-gəl\

German Spiegeleisen, from Spiegel mirror + Eisen iron

First Known Use: 1855

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