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Syllabification: spie·gel·ei·sen
Pronunciation: /ˈspēɡəˌlīz(ə)n

Definition of spiegeleisen in English:


An alloy of iron and manganese, used in steelmaking.
Example sentences
  • Realising the enormous value of his discovery he continued with his experiments to master the facts concerning spiegeleisen when alloyed in various ways.
  • In 1904, Palmerton would begin producing spiegeleisen, taking advantage of the residuum from the zinc oxide furnaces.
  • The quality of the steel produced would be poor if it absorbed too much oxygen and too little carbon so spiegeleisen, a triple compound of iron, manganese and carbon was added (manganese combines readily with oxygen).


mid 19th century: from German, from Spiegel 'mirror' + Eisen 'iron'.

Definition of spiegeleisen in:

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Word of the day interfuse
Pronunciation: ˌin(t)ərˈfyo͞oz
join or mix (two or more things) together