| English noun: caesium | |||
| 1. | caesium (substance) a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal | ||
| Synonyms | atomic number 55, cesium, Cs | ||
| Broader (hypernym) | metal, metallic element | ||
| Narrower (hyponym) | cesium 137 | ||
| Substance meronym | pollucite | ||