magnesium hydroxide

American

noun

Chemistry.

a white, crystalline, slightly water-soluble powder, Mg(OH) 2 , used chiefly in medicine as an antacid and as a laxative.

Etymology

Origin of magnesium hydroxide

First recorded in 1905–10

Compare meaning

How does magnesium-hydroxide compare to similar and commonly confused words? Explore the most common comparisons:

magnesium hydroxide vs. magnesium oxide

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.

For the past year, the postdoctoral researcher has poured water samples into small plastic bottles, some with an added dose of magnesium hydroxide.

From Science Magazine • Nov. 30, 2023

The flourlike white powder, a mineral form of magnesium hydroxide called brucite, is combined with seawater in van-size plastic tanks, creating a mixture resembling a vanilla milkshake.

From Science Magazine • Nov. 30, 2023

And magnesium hydroxide doesn’t block sweat glands the way aluminum does.

From Slate • Aug. 19, 2023

Addition of calcium hydroxide to seawater precipitates magnesium hydroxide.

From Textbooks • Feb. 14, 2019

A paste of magnesium hydroxide and water slowly absorbs carbon dioxide from the air and becomes very hard.

From An Elementary Study of Chemistry by McPherson, William

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023