• Definition for "caesium"
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caesium definition

  • noun:
    • Variant of cesium.
    • A metallic substance element (icon Cs) with an atomic quantity of 55.
    • an uncommon alkaline material present mineral liquid; -- so named from two characteristic blue outlines with its range. It was the initial factor found by spectrum evaluation, and it is many highly standard and electro-positive substance understood. Sign Cs. Atomic quantity 55. Atomic body weight 132.6.
    • Chemical symbol, Cs; atomic weight, 132.8. A rare metal discovered by Bunsen and Kirchhoff by spectrum analysis in the saline waters of Dürkheim in Germany, and subsequently in other mineral waters.
    • a soft silver-white ductile metallic element (liquid at typical conditions); the absolute most electropositive and alkaline material
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