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magnesium hydroxide

noun

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


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Word History and Origins

Origin of magnesium hydroxide1

First recorded in 1905–10

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Example Sentences

Water decomposes it with liberation of ammonia and formation of magnesium hydroxide.

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

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