Meaning of CESIUM

Pronunciation:			'seezeeum
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WordNet Dictionary
	Definition:		[n]  a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
	Synonyms:		atomic number 55, caesium, Cs
	See Also:		cesium 137, metal, metallic element, pollucite
Medical Dictionary
	Definition:		A radioactive isotope used for continuous internal radiotherapy.
Biology Dictionary
	Definition:		A radioactive alkaline (basic) metal element that becomes liquid at slightly above room temperature; it reacts violently with both water and oxygen, as well as with other substances.