Meanings
nouncesium (uncountable)
- USalternativeuncountableAlternative form of caesium.
Synonyms & antonyms
nouna soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
Broader
metallic elementmetal
Synonym sets from Open English WordNet, CC BY 4.0.
Rhymes & wordplay
Anagrams
Cite this entry
APA
cesium. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/cesium
MLA
“cesium.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/cesium. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “cesium,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/cesium.
Source: cesium on Wiktionary, CC BY-SA 4.0.