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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
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
The first step was examining the beads’ levels of magnesium oxide (MgO) and ratio of MgO to aluminum oxide (Al2O3).
—Tom Hawking, Popular Science, 5 Sep. 2024
See all Example Sentences for magnesium oxide
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'magnesium oxide.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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 31 Oct. 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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