HyperDic: atomic_number_55

English > 1 sense of the expression atomic number 55:
NOUNsubstanceatomic number 55, cesium, caesium, Csa soft silver-white ductile metallic element (liquid / liquid at normal temperatures)
English > atomic number 55: 1 sense > noun 1, substance
MeaningA soft silver-white ductile metallic element (liquid / liquid at normal temperatures); the most electropositive and alkaline metal.
Synonymscesium, caesium, Cs
Narrowercesium 137A radioactive isotope of cesium used in radiation therapy
Broadermetallic element, metalAny of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
Substance ofpolluciteA rare mineral that is an important source of cesium
Spanishcesio, Cs, número atómico 55
Catalancesi, Cs, número atòmic 55

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