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magnesium oxide

noun

Definition of magnesium oxide

: a white highly infusible compound MgO used especially in refractories, cements, insulation, and fertilizers, in rubber manufacture, and in medicine as an antacid and mild laxative

Examples of magnesium oxide in a Sentence

Recent Examples on the Web

 Lime plaster coatings or magnesium oxide boards have to be applied to anything touching hempcrete, or the lime will calcify it and lose its ability to absorb and release water. — Adam Popescu, New York Times, "There’s No Place Like Home, Especially if It’s Made of Hemp," 29 Jan. 2018

First Known Use of magnesium oxide

1866, in the meaning defined above

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More Definitions for magnesium oxide

magnesium oxide

noun

Medical Definition of magnesium oxide

: a white highly infusible compound MgO used especially in refractories, cements, insulation, and fertilizers, in rubber manufacture, and in medicine as an antacid and mild laxative

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