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    cesium

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    cesium

    Longman Dictionary of Contemporary English 5++朗文当代英语 5++LDOCE 5++朗文 5++ce·si·um /ˈsiːziəm/ noun [uncountable]  the American spelling of caesium caesium的美式拼法
    Examples from the Corpus
    cesium• The definition of a second has since officially been the time it takes a cesium atom to make 9,192,631,770 vibrations.• During irradiation, food is exposed to gamma rays from sources such as cobalt 60 or cesium 137.
    ce·si·um nounChineseSyllable
    spelling American the caesium Corpus of


    See caesium for more


    cesium
    I
    cae‧si‧um British English, cesium American English /ˈsiːziəm/ noun [uncountable]
     Date: 1800-1900
     Language: Latin
     Origin: caesius __bluish grey__
    a soft silver-white metal that is used in photoelectric cells. It is a chemical element: symbol Cs

    II
    ce‧si‧um /ˈsiːziəm/ noun [uncountable]
    the American spelling of caesium


    ces·ium (NAmE) (BrE cae·sium) BrE /ˈsiːziəm/ 🔊NAmE /ˈsiːziəm/ 🔊 noun [uncountable] (symbol Cs) a chemical element. Cesium is a soft silver-white metal that reacts strongly in water, used in photoelectric cells. 铯