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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
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Best Magnesium Supplement: Nature Made Magnesium Citrate Courtesy of brand
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Both magnesium oxide and magnesium citrate are great supplements for bloating that won’t wreak havoc on your digestive system.
—
Marilyn La Jeunesse, Glamour, 31 Jan. 2025
Magnesium supplements, like magnesium citrate and magnesium oxide, are available.
—
Chelsea Rae Bourgeois, Rdn, Health, 23 Dec. 2024
Some health experts suggest magnesium supplementation can help prevent migraine attacks, with magnesium oxide being the most popular type for migraine treatment.
—
Ashley Wong, Health, 10 Dec. 2024
Poor bioavailability means that your body may not fully absorb magnesium oxide supplements.6
4.
—
Brittany Lubeck, Ms, Rdn, Verywell Health, 20 Nov. 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 8 Feb. 2025.
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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