noun
- Acute contagious infection caused by the bacterium Corynebacterium diphtheriae; marked by the formation of a false membrane in the throat and other air passages causing difficulty in breathing. .
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| APA | WordNet. (2010). diphtheria. Retrieved September 21, 2026, from http://smartdefine.org/diphtheria/definitions/1245575 |
| Chicago | WordNet. 2010. "diphtheria" http://smartdefine.org/diphtheria/definitions/1245575 (accessed September 21, 2026). |
| Harvard | WordNet 2010, diphtheria, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/diphtheria/definitions/1245575>. |
| MLA | WordNet. "diphtheria" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/diphtheria/definitions/1245575> |