WOLFRAMS
- rare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410-¦ C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. Symbol: W; <
- mineral, iron manganese tungstate, (Fe,Mn)WO4, occurring in heavy grayish-black to brownish-black tabular or bladed crystals: an important ore of tungsten
- WOLFRAM, tungsten (a metallic element) [n]