Dictionary Entry
caesium
Part of SpeechnounPronunciation/ˈsiːzi.əm/The chemical element (symbol Cs) with an atomic number of 55. It is a soft, gold-colored, highly reactive alkali metal.
Origin
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Common Phrases
chloride caesium. caesiumatoms caesium137 caesiumvapour caesiumiodide caesium
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Synonyms
Antonyms
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Related Words
Poetry examples for “caesium”
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