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disaccharide

[dahy-sak-uh-rahyd, -rid] /daɪˈsæk əˌraɪd, -rɪd/
noun, Chemistry
1.
any of a group of carbohydrates, as sucrose or lactose, that yield monosaccharides on hydrolysis.
Also called double sugar.
Origin
1890-1895
1890-95; di-1 + saccharide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for disaccharide
  • Table sugar is sucrose, a glucose-fructose disaccharide.
British Dictionary definitions for disaccharide

disaccharide

/daɪˈsækəˌraɪd; -rɪd/
noun
1.
any of a class of sugars, such as maltose, lactose, and sucrose, having two linked monosaccharide units per molecule
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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disaccharide in Medicine

disaccharide di·sac·cha·ride (dī-sāk'ə-rīd')
n.
Any of a class of carbohydrates, including lactose and sucrose, that yield two monosaccharides upon hydrolysis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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disaccharide in Science
disaccharide
  (dī-sāk'ə-rīd')   
Any of a class of sugars, including lactose and sucrose, that are composed of two monosaccharides.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for disaccharide

any substance that is composed of two molecules of simple sugars (monosaccharides) linked to each other. Sucrose, which is formed following photosynthesis in green plants, consists of one molecule of glucose and one of fructose; lactose (milk sugar), found in the milk of all mammals, consists of glucose and galactose; and maltose, a product of the breakdown of starches during digestion, consists of two molecules of glucose. Another important disaccharide, trehalose, which is found in the circulating fluid of many insects, also consists of two molecules of glucose, but they are linked in a way such that trehalose differs from maltose.

Learn more about disaccharide with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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