CÆSIUM
\kˈasi͡əm], \kˈasiəm], \k_ˈa_s_iə_m]\
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s[=e]z'i-um, n. a silver-white, soft, and extensile alkaline metal, almost always found along with rubidium, discovered by Bunsen and Kirchhoff in 1860 by spectrum analysis.--adj. CÆS'IOUS, bluish green. [L. cæsius, bluish gray.]
By Thomas Davidson
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