noun
- A long period of darkness and extreme cold that scientists predict would follow a full-scale nuclear war; a layer of dust and smoke in the atmosphere would cover the earth and block the rays of the sun; most living organisms would perish. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). nuclear winter. Retrieved September 20, 2026, from http://smartdefine.org/nuclear_winter/definitions/1235474 |
| Chicago | WordNet. 2010. "nuclear winter" http://smartdefine.org/nuclear_winter/definitions/1235474 (accessed September 20, 2026). |
| Harvard | WordNet 2010, nuclear winter, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/nuclear_winter/definitions/1235474>. |
| MLA | WordNet. "nuclear winter" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/nuclear_winter/definitions/1235474> |