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magnesium oxide
noun
: 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
Poor bioavailability means that your body may not fully absorb magnesium oxide supplements.6
4.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 20 Nov. 2024
Airborne features magnesium in the forms of magnesium oxide and magnesium sulfate, while Emergen-C uses magnesium hydroxide and magnesium carbonate.
—Megan Nunn, Verywell Health, 10 Oct. 2024
There are wallboards with much better water resistance, such as cement board or magnesium oxide board.
—Jamie Gold, Forbes, 8 Oct. 2024
Some beads were less than 1 percent magnesium oxide; others nearly 30 percent.
—John Timmer, Ars Technica, 5 Sep. 2024
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Word History
First Known Use
1866, in the meaning defined above
Dictionary Entries Near magnesium oxide
Cite this Entry
“Magnesium oxide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnesium%20oxide. Accessed 7 Dec. 2024.
Kids Definition
magnesium oxide
noun
: a white earthy solid that consists of magnesium and oxygen and is used especially in fertilizers and rubber, as a mild laxative, and against acid in the stomach
Medical Definition
magnesium oxide
noun
: 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
More from Merriam-Webster on magnesium oxide
Britannica.com: Encyclopedia article about magnesium oxide
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