tungsten : Idioms & Phrases
chrome-tungsten steel
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noun a steel alloy made with chromium and tungsten
WordNet
iron manganese tungsten
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noun a mineral consisting of iron and manganese tungstate in crystalline form; the principal ore of tungsten; found in quartz veins associated with granitic rocks
wolframite.
WordNet
Tungsten ocher , ∨ Tungstic ocher
(Min.) , tungstate.
Webster 1913
tungsten steel
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noun a very hard heat-resistant steel containing tungsten
wolfram steel.