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magnesium
noun
mag·ne·sium
mag-ˈnē-zē-əm
-zhəm
: a silver-white malleable ductile light metallic element that occurs abundantly in nature and is used in metallurgical and chemical processes, in photography, signaling, and pyrotechnics because of the intense white light it produces on burning, and in construction especially in the form of light alloys see Chemical Elements Table
Examples of magnesium in a Sentence
Recent Examples on the Web
In addition to fats and vitamins, almonds are also rich in magnesium, a mineral that is key for many body functions, like nerve function, bone strength, and metabolism.
—Margaux Anbouba, Vogue, 8 Jan. 2025
Brown rice has over twice the fiber, vitamin B6, and magnesium of white rice—plus more of other essential nutrients.
—Johna Burdeos, Health, 8 Jan. 2025
The harder the water, the more minerals like magnesium and calcium are in it.
—Nafeesah Allen, Better Homes & Gardens, 5 Jan. 2025
Kale Kale is a good source of vitamins A, K, and C, folate, and important minerals like calcium, potassium, and magnesium.
—Lindsey Desoto, Rd, Ld, Verywell Health, 3 Jan. 2025
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Word History
Etymology
New Latin, from magnesia
First Known Use
1812, in the meaning defined above
Phrases Containing magnesium
Dictionary Entries Near magnesium
Cite this Entry
“Magnesium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnesium. Accessed 18 Jan. 2025.
Kids Definition
magnesium
noun
mag·ne·sium
mag-ˈnē-zē-əm
-zhəm
: a silver-white metallic element that is light and easily worked, burns with a dazzling light, and is used in making lightweight alloys see element
Medical Definition
magnesium
noun
mag·ne·sium
mag-ˈnē-zē-əm
-zhəm
: a silver-white light malleable ductile metallic element that occurs abundantly in nature (as in bones and seeds and in the form of chlorophyll in the green parts of plants) and is used in metallurgical and chemical processes, in photography, in signaling, and in the manufacture of pyrotechnics because of the intense white light it produces on burning, and in construction especially in the form of light alloys
—symbol Mg
see Chemical Elements Table
More from Merriam-Webster on magnesium
Nglish: Translation of magnesium for Spanish Speakers
Britannica.com: Encyclopedia article about magnesium
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