cesium
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cesium
(Cs) [se´ze-um]a chemical element, atomic number 55, atomic weight 132.905. (See Appendix 6.)
ce·si·um (Cs),
(sē'zē-ŭm),A metallic element, atomic no. 55, atomic wt. 132.90543; a member of the alkali metal group. 137Cs (half-life equal to 30.1 years) is used in the treatment of certain malignancies.
[L. caesius, bluish gray]
cesium
/ce·si·um/ (Cs) (se´ze-um) a chemical element, at. no. 55.cesium (Cs)
[sē′zē·əm]
Etymology: L, caesius, sky blue
an alkali metal element. Its atomic number is 55; its atomic mass is 132.9. Like other alkali metals, cesium emits electrons when exposed to visible light and is used in photoelectric cells and in television cameras. Also spelled caesium.
ce·si·um
(Cs) (sē'zē-ŭm)A metallic element, atomic no. 55, atomic wt. 132.90543; a member of the alkali metal group. 137Cs (half-life equal to 30.1 years) is used in treatment of certain malignancies.
Synonym(s): caesium.
Synonym(s): caesium.
[L. caesius, bluish gray]
ce·si·um
(Cs) (sē'zē-ŭm)A metallic element used in treatment of some malignancies.
Synonym(s): caesium.
Synonym(s): caesium.
[L. caesius, bluish gray]
cesium (sē´zēəm),
n an alkali metal element used in photoelectric cells and television cameras.
cesium
a chemical element, atomic number 55, atomic weight 132.905, symbol Cs. See Table 6.
cesium-137
a product of atomic fission by explosion or breakdown of a reactor. It is feared as a pollutant because of its very long half-life.