(n.) A compound radical, NH4, having the chemical relations of a strongly basic element like the alkali metals.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ammonium. Retrieved September 21, 2026, from http://smartdefine.org/ammonium/definitions/1973166 |
| Chicago | Webster's. 2011. "ammonium" http://smartdefine.org/ammonium/definitions/1973166 (accessed September 21, 2026). |
| Harvard | Webster's 2011, ammonium, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/ammonium/definitions/1973166>. |
| MLA | Webster's. "ammonium" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/ammonium/definitions/1973166> |