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magnesian
Variant of magnesia
noun
- magnesium oxide, MgO, a white, tasteless powder, used as a mild laxative and antacid, and as an insulating substance, in firebrick, etc.
- hydrated magnesium carbonate, also used as a laxative
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
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