radium in Gujarati ગુજરાતી
radium in Hindi हिन्दी
radium in Sindhi سنڌي
radium in Tamil தமிழ்
radium in English
- radium⇄radium, noun.
a radioactive metallic chemical element found in very small amounts in uranium ores such as pitchblende. Radium is very unstable and gives off alpha particles and gamma rays as it breaks down in successive forms into radon, polonium, a