magnesium hydroxide

noun Chemistry.

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

Nearby words

  1. magnesia,
  2. magnesite,
  3. magnesium,
  4. magnesium arsenate,
  5. magnesium carbonate,
  6. magnesium light,
  7. magnesium oxide,
  8. magnesium peroxide,
  9. magnesium salicylate,
  10. magnesium silicate

Origin of magnesium hydroxide

First recorded in 1905–10 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Medicine definitions for magnesium hydroxide

magnesium hydroxide


A white powder used as an antacid and a laxative.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.