| rubidium | (n) a soft silvery metallic element of the alkali metal group; burns in air and reacts violently in water; occurs in carnallite and lepidolite and pollucite, Syn. atomic number 37, Rb |
| 铷 | [铷 / 銣] rubidium Rb, alkali metal 鹼性金屬|碱性金属 with atomic number 37, See also: 鹼性金屬, 碱性金属 #121,234 [Add to Longdo] |