noun
- The commonest isotope of uranium; it is not fissionable but when irradiated with neutrons it produces fissionable plutonium 239. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). uranium 238. Retrieved September 20, 2026, from http://smartdefine.org/uranium_238/definitions/1325709 |
| Chicago | WordNet. 2010. "uranium 238" http://smartdefine.org/uranium_238/definitions/1325709 (accessed September 20, 2026). |
| Harvard | WordNet 2010, uranium 238, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/uranium_238/definitions/1325709>. |
| MLA | WordNet. "uranium 238" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/uranium_238/definitions/1325709> |