magnesium chloride

noun

: a bitter deliquescent salt MgCl₂ used especially as a source of magnesium metal

Examples of magnesium chloride in a Sentence

Recent Examples on the Web

Similarly, magnesium is available in different forms, including magnesium citrate, magnesium oxide, and magnesium chloride. —Ruth Jessen Hickman, Health, 11 Dec. 2025

People use magnesium chloride as a road treatment to control dust, stabilize soil, and de-ice surfaces. —Jenna Prestininzi, Freep.com, 10 Dec. 2025

Instead of buying rock salt, choose a safer de-icer like calcium chloride or magnesium chloride. —Brandee Gruener, Southern Living, 29 Nov. 2025

Most sprays are made with 20 to 35% of this magnesium chloride solution, and some formulators may include humectants like glycerin and other soothing agents to offset the dryness and stickiness that the magnesium oil might have. —Audrey Noble, Vogue, 10 Oct. 2025

Word History

First Known Use

1866, in the meaning defined above

Rhymes for magnesium chloride

• dihydrochloride
• amiloride
• hexachloride
• hydrochloride
• oxychloride
• pentachloride
• tetrachloride
• bichloride
• dichloride
• perchloride
• trichloride
• boride

Kids Definition

magnesium chloride

noun

: a bitter salt that occurs dissolved in seawater and is used in producing magnesium metal

Medical Definition

magnesium chloride

noun

: a bitter crystalline salt MgCl₂ used especially to replenish body electrolytes