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Definition of Caesium
1. Noun. A soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal.
Exact synonyms: Atomic Number 55, Cesium, Cs
Generic synonyms: Metal, Metallic Element
Specialized synonyms: Cesium 137
Substance meronyms: Pollucite
Generic synonyms: Metal, Metallic Element
Specialized synonyms: Cesium 137
Substance meronyms: Pollucite
Definition of Caesium
1. Noun. A metallic chemical element (''symbol'' Cs) with an atomic number of 55. ¹
¹ Source: wiktionary.com
Definition of Caesium
1. cesium [n -S] - See also: cesium