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WORDNET DICTIONARY
CIDE DICTIONARY
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WORDNET DICTIONARY
Noun cesium has 1 sense
- cesium(n = noun.substance) atomic number 55, caesium, cs - a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal; is a kind of metal, metallic element
has particulars: cesium 137
CIDE DICTIONARY
cesium, n.
the chemical element of atomic number 55. It is a univalent element, the most electropositive metal. Symbol Cs; atomic weight 132.905. IT has a melting point of 28.4WordNet 1.5]