Definitions for magnesiamægˈni ʒə, -ʃə
Random House Webster's College Dictionary
mag•ne•siamægˈni ʒə, -ʃə(n.)
a white tasteless substance, magnesium oxide, MgO, used in medicine as an antacid and laxative.
Ref: Compare milk of magnesia
Origin of magnesia:
periclase, magnesia, magnesium oxide(noun)
a white solid mineral that occurs naturally as periclase; a source of magnesium
A region that is home to the city of Volos, located in the southwestern tip of Thessaly in north central Greece.
Origin: Middle English magnesia, from late Latin magnesia, from Ancient Greek μαγνησία, after Μαγνησία, a city name in Thessaly, Lydia, and Asia Minor.
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