Magnesia
Magnesia (?; 277) , noun
[Latin Magnesia, fem. of Magnesius of the country Magnesia, Greek h` Magnhsi`a li`qos a magnet. Compare Magnet.]
(Chemistry) A light earthy white substance, consisting of magnesium oxide (MgO), 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.
Collocations (1)
Magnesia alba (Medicine Chemistry) , a bulky white amorphous substance, consisting of a hydrous basic carbonate of magnesium, and used as a mild cathartic.