Definition of

Cesium

  1. (noun, substance) a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal

via WordNet, Princeton University

Synonyms of Cesium

atomic number 55, caesium, cs

Alternate forms of Cesium

Hyponyms: cesium 137

Hypernyms: metal, metallic element

Origin of the word Cesium

  1. coined by Bunsen and Kirchhoff in 1860, from L. caesius "blue-gray," in reference to the two blue lines in its spectrum. more

via Online Etymology Dictionary, ©2001 Douglas Harper

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