magnesium oxide
Americannoun
noun
Etymology
Origin of magnesium oxide
First recorded in 1905–10
Compare meaning
How does magnesium-oxide compare to similar and commonly confused words? Explore the most common comparisons:
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
And that's why taking magnesium oxide supplements was found to have lots of benefits, according to the research.
From BBC ● Oct. 13, 2025
The magnesium formed a thin layer of magnesium oxide on the tantalum surface that appears to keep oxygen from getting through.
From Science Daily ● Feb. 5, 2024
That reaction would leave magnesium oxide powder, which when spread thin would rapidly react with CO2 from the atmosphere, re-forming magnesite, completing a cycle that could be repeated over and over.
From Science Magazine ● Sep. 3, 2020
The oxides of the alkali metals have little industrial utility, unlike magnesium oxide, calcium oxide, and aluminum oxide.
From Textbooks ● Feb. 14, 2019
A sample of magnesia limestone has the following composition: Silica, 3.00%; ferric oxide and alumina, 0.20%; calcium oxide, 33.10%; magnesium oxide, 20.70%; carbon dioxide, 43.00%.
From An Introductory Course of Quantitative Chemical Analysis With Explanatory Notes by Talbot, Henry P.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.