spiegeleisen
/ˈʃpiːɡəlˌaɪzən/
spiegeleisen means A ferromanganese alloy containing approximately 15% manganese and small quantities of carbon and silicon. Lexicurio rates it Sui generis — a strength score of 86 out of 100.
spiegeleisen is pronounced /ˈʃpiːɡəlˌaɪzən/.
Etymology
From German Spiegeleisen (literally “mirror iron”).
noun
- A ferromanganese alloy containing approximately 15% manganese and small quantities of carbon and silicon.“Historically, spiegeleisen was the standard form in which manganese was traded and used in steelmaking.”