magnesia : Idioms & Phrases
Magnesia alba
L. (Med. Chem.) , a bulky white amorphous substance, consisting of a hydrous basic carbonate of magnesium, and used as a mild cathartic.
Webster 1913
milk of magnesia
-
noun purgative consisting of a milky white liquid suspension of magnesium hydroxide; used as a laxative and (in smaller doses) as an antacid
