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gum arabic

a water-soluble, gummy exudate obtained from the acacia tree, especially Acacia senegal, used as an emulsifier, an adhesive, in inks, and in pharmaceuticals.
Also called acacia, gum acacia.
Origin of gum arabic
Middle English word dating back to 1350-1400 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for gum arabic
Historical Examples
  • For Industry, behold the arrival of pincers, gum arabic, "Pittsburgh cord" at 21c.

    Quaker Hill Warren H. Wilson
  • Use the same for the second coat, with the addition of a little gum arabic.

    The Toilet of Flora Pierre-Joseph Buc'hoz
  • gum arabic is one of the most important of this class of vegetable productions.

    The Reason Why Anonymous
  • The sugar and gum arabic powder is excellent for the local irritation.

    The Funny Side of Physic A. D. Crabtre
  • Pure sugar and gum arabic are white, or nearly so, and require no coloring.

    The Funny Side of Physic A. D. Crabtre
  • The umbrella proved to be fashioned of gum arabic and cobweb.

  • Most gums are prepared from potato starch, dextrin or gum arabic.

    What Philately Teaches

    John N. Luff
  • He had a very extensive shop in the Minories, and dealt in rhubarb and gum arabic as well.

    Ask Momma R. S. Surtees
  • He had noted a small bottle of gum arabic standing on the cast-iron mantelpiece.

    The Grell Mystery Frank Froest
  • He prepared palette, brushes, and skins of paint, each one coated with a transparent film of gum arabic.

    The Romance of Leonardo da Vinci

    Dmitry Sergeyevich Merezhkovsky
British Dictionary definitions for gum arabic

gum arabic

a gum exuded by certain acacia trees, esp Acacia senegal: used in the manufacture of ink, food thickeners, pills, emulsifiers, etc Also called acacia, gum acacia
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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gum arabic in Science
gum arabic  
A gum exuded by various African trees of the genus Acacia, especially A. senegal. Gum arabic is used in the preparation of pills and emulsions, in the manufacture of adhesives and candies, and as a thickener and stabilizer of colloids. Gum arabic consists mostly of a mixture of oligosaccharides and heavy glycoproteins.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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