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Thorez

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• Thoria

  noun, Chemistry. 1. a white, heavy, water-insoluble powder, ThO 2 , used chiefly in incandescent mantles, as the Welsbach gas mantle. noun 1. another name for thorium dioxide

• Thorianite

  noun 1. a rare mineral, mainly thoria, ThO 2 , but also containing uranium, cerium, and other rare-earth metals, occurring in small, black, cubic crystals: notable for its radioactivity and used as a minor source of thorium. noun 1. a rare black mineral consisting of thorium and uranium oxides. Formula: ThO2.U3O8

• Thoric

  noun, Chemistry. 1. a grayish-white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun-lamp and vacuum-tube filament coatings, and in alloys. Symbol: Th; atomic weight: 232.038; atomic number: 90; specific gravity: 11.7. noun 1. a soft ductile silvery-white metallic element. It […]

• Thorite

  noun 1. a rare mineral, thorium silicate, ThSiO 4 , occurring in the form of yellow or black crystals. noun 1. a yellow, brownish, or black radioactive mineral consisting of tetragonal thorium silicate. It occurs in coarse granite and is a source of thorium. Formula: ThSiO4

• Thorium

  noun, Chemistry. 1. a grayish-white, lustrous, somewhat ductile and malleable, radioactive metallic element present in monazite: used as a source of nuclear energy, as a coating on sun-lamp and vacuum-tube filament coatings, and in alloys. Symbol: Th; atomic weight: 232.038; atomic number: 90; specific gravity: 11.7. noun 1. a soft ductile silvery-white metallic element. It […]

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