magnesium

noun
mag·​ne·​sium | \ mag-ˈnē-zē-əm How to pronounce magnesium (audio) , -zhəm \

Definition of magnesium

: 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 The food is already a staple in several Asian cuisines and a high source of protein, iron and magnesium. Priscilla Totiyapungprasert, The Arizona Republic, "'Don't be scared to season that': Meet the father-son duo behind Arizona's new tofu company," 5 Dec. 2020 That said, wood ashes do contain lots of essential elements, especially calcium, magnesium and potassium, and usually can be added to soil and compost piles. Jeff Lowenfels, Anchorage Daily News, "How to choose poinsettias and Christmas trees," 3 Dec. 2020 Plus, spinach is packed with vitamins A, C, and K, and is a good source of minerals like iron, magnesium, potassium, and manganese. Audrey Bruno, SELF, "45 Delicious Spinach Recipes for Getting Your Greens," 15 Oct. 2020 Heavier stars live much shorter lives, only 10 million years or so, yet manufacture a much longer chain of elements: oxygen, carbon, neon, nitrogen, magnesium, silicon and even iron. Anna Y. Q. Ho, Scientific American, "Strange Supernovae Upend Expectations," 26 Nov. 2020 Researchers then measured how much iron, magnesium, and more than a dozen other elements the bacteria can pull out of the rock samples. Popular Science, "These rock-eating microbes could help us settle the Moon and Mars," 11 Nov. 2020 While those bright old stick magnesium flares are great standby’s, the newer LED versions are better for the environment, crushproof, water-resistant, and safer than traditional flares. Jennifer Jolly, USA TODAY, "Road trip in the pandemic? These are some of the best tech tools if you have to travel," 12 Dec. 2020 The lithium-ion cells will continue to use nickel-magnesium-cobalt chemistry, at least until such time as other cell chemistries prove superior. Jonathan M. Gitlin, Ars Technica, "Everything we know about Hyundai and Kia’s new electric vehicle platform," 2 Dec. 2020 Wilson and her colleagues sprayed the mine’s ultramafic rock tailings with dilute sulfuric acid, causing magnesium to leach out. Robert F. Service, Science | AAAS, "Industrial waste can turn planet-warming carbon dioxide into stone," 3 Sep. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'magnesium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of magnesium

1812, in the meaning defined above

History and Etymology for magnesium

New Latin, from magnesia

Keep scrolling for more

Learn More about magnesium

Time Traveler for magnesium

Time Traveler

The first known use of magnesium was in 1812

See more words from the same year

Statistics for magnesium

Last Updated

16 Jan 2021

Cite this Entry

“Magnesium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnesium. Accessed 24 Jan. 2021.

Keep scrolling for more

More Definitions for magnesium

magnesium

noun
How to pronounce magnesium (audio)

English Language Learners Definition of magnesium

: a silver-white metallic element that produces a very bright white light when it burns

magnesium

noun
mag·​ne·​sium | \ mag-ˈnē-zē-əm How to pronounce magnesium (audio) , -ˈnē-zhəm \

Kids Definition of magnesium

: a silvery white metallic chemical element that is lighter than aluminum and is used in lightweight alloys

magnesium

noun
mag·​ne·​sium | \ mag-ˈnē-zē-əm How to pronounce magnesium (audio) , -zhəm How to pronounce magnesium (audio) \

Medical Definition of magnesium

: 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

Comments on magnesium

What made you want to look up magnesium? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Slippery Words Quiz—Changing with the Times

  • ducreux self portrait yawning
  • What is an earlier meaning of nice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Typeshift

Anagram puzzles meet word search.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!