noun
- Activities organized by civilians for their own protection in time of war or disaster. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). civil defense. Retrieved September 21, 2026, from http://smartdefine.org/civil_defense/definitions/1192836 |
| Chicago | WordNet. 2010. "civil defense" http://smartdefine.org/civil_defense/definitions/1192836 (accessed September 21, 2026). |
| Harvard | WordNet 2010, civil defense, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/civil_defense/definitions/1192836>. |
| MLA | WordNet. "civil defense" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/civil_defense/definitions/1192836> |