rubidium /ru:'bidiәm/ 📖 中文释义 n. 铷[化] 铷Rb 📘 English Definition(英文释义) 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 ← rubidiol R 字母词表 rubidium and ammonium bromide →