(n.) A light earthy white substance, consisting of magnesium oxide, and obtained by heating magnesium hydrate or carbonate or by burning magnesium. It has a slightly alkaline reaction, and is used in medicine as a mild antacid laxative. See Magnesium.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). magnesia. Retrieved September 23, 2026, from http://smartdefine.org/magnesia/definitions/2029739 |
| Chicago | Webster's. 2011. "magnesia" http://smartdefine.org/magnesia/definitions/2029739 (accessed September 23, 2026). |
| Harvard | Webster's 2011, magnesia, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/magnesia/definitions/2029739>. |
| MLA | Webster's. "magnesia" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/magnesia/definitions/2029739> |