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platinoid an alloy made of copper, nickel, and zinc to which a small amount of tungsten or aluminum has been added, used esp. in electric coils. [1/3 definitions]
tungsten lamp an electric lamp with a tungsten filament or filaments that uses very low wattage.
tungsten steel an alloy of steel and tungsten, having great hardness and high resistance to heat.
W1 symbol of the chemical element tungsten.
wolfram tungsten.
wolframite a brown or black mineral that is an important ore from which tungsten is extracted.