(a.) Subtile or invisible emanation; exhalation perceived by the sense of smell; especially, noisome or noxious exhalation; as, the effluvium from diseased or putrefying bodies or from ill drainage.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). effluvium. Retrieved September 22, 2026, from http://smartdefine.org/effluvium/definitions/2001784 |
| Chicago | Webster's. 2011. "effluvium" http://smartdefine.org/effluvium/definitions/2001784 (accessed September 22, 2026). |
| Harvard | Webster's 2011, effluvium, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/effluvium/definitions/2001784>. |
| MLA | Webster's. "effluvium" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/effluvium/definitions/2001784> |