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superalloy

[soo-per-al-oi] /ˈsu pərˌæl ɔɪ/
noun
1.
an alloy, often with a nickel, nickel-iron, or cobalt base, capable of withstanding very high temperatures, used in jet engines, rockets, etc.
Origin of superalloy
1945-1950
1945-50; super- + alloy
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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