noun
- A form of acquired immunity in which the body produces its own antibodies against disease-causing antigens. .
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). active immunity. Retrieved September 20, 2026, from http://smartdefine.org/active_immunity/definitions/1247212 |
| Chicago | WordNet. 2010. "active immunity" http://smartdefine.org/active_immunity/definitions/1247212 (accessed September 20, 2026). |
| Harvard | WordNet 2010, active immunity, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/active_immunity/definitions/1247212>. |
| MLA | WordNet. "active immunity" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/active_immunity/definitions/1247212> |