noun
- An intensely radioactive metallic element that occurs in minute amounts in uranium ores.
- synonyms: Ra, atomic number 88
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Radium. Retrieved September 21, 2026, from http://smartdefine.org/radium/definitions/1247682 |
| Chicago | WordNet. 2010. "Radium" http://smartdefine.org/radium/definitions/1247682 (accessed September 21, 2026). |
| Harvard | WordNet 2010, Radium, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/radium/definitions/1247682>. |
| MLA | WordNet. "Radium" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/radium/definitions/1247682> |