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nouna soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
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Definition that contains cesium
- alkaline metal any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)
- cesium 137 a radioactive isotope of cesium used in radiation therapy
- pollucite a rare mineral that is an important source of cesium
- alkali metal any of the monovalent metals of group I of the periodic table (lithium or sodium or potassium or rubidium or cesium or francium)