Cesium

noun

noun ·3 syllables ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Alternative form of caesium. US, alt-of, alternative, uncountable
  2. 2
    a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal wordnet

Synonyms

All synonyms
atomic number 55caesiumcsgoldironlead

Example

More examples

"Radioactive cesium in amounts exceeding limits has been measured on young lancefish caught in Fukushima prefecture."

Related phrases

cesium azidecesium clockcesium fluoridecesium hydroxidecesium iodidecesium nitrate

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.