cadmium definition

  • noun:
    • A soft, bluish-white metallic element occurring mainly in zinc, copper, and lead ores, that's quickly slashed with a knife and is used in low-friction, fatigue-resistant alloys, solders, dental amalgams, nickel-cadmium storage battery packs, nuclear reactor shields, plus rustproof electroplating. Atomic quantity 48; atomic body weight 112.41; melting point 320.9°C; boiling point 765°C; specific gravity 8.65; valence 2. See Table at element.
    • a metallic chemical element (symbol Cd) with an atomic range 48.
    • A comparatively rare element about zinc, and occurring in some zinc ores. It's a white steel, both ductile and malleable. Icon Cd. Atomic weight 111.8. It was found by Stromeyer in 1817, who named it from the connection with zinc or zinc ore.
    • Atomic weight, 112.1; substance representation, Cd. A metal found by Stromeyer in 1817, resembling tin in color and general appearance, and, like this steel, having a “cry” whenever bent.
    • a soft bluish-white ductile malleable toxic bivalent metallic element; does occur in colaboration with zinc ores

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