noun
- A bivalent and trivalent metallic element of the rare earth group.
- synonyms: Eu, atomic number 63
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). Europium. Retrieved September 20, 2026, from http://smartdefine.org/europium/definitions/1247634 |
| Chicago | WordNet. 2010. "Europium" http://smartdefine.org/europium/definitions/1247634 (accessed September 20, 2026). |
| Harvard | WordNet 2010, Europium, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/europium/definitions/1247634>. |
| MLA | WordNet. "Europium" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/europium/definitions/1247634> |