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[mawl-tohs] /ˈmɔl toʊs/
noun, Chemistry
a white, crystalline, water-soluble sugar, C 1 2 H 2 2 O 1 1 ⋅H 2 O, formed by the action of diastase, especially from malt, on starch: used chiefly as a nutrient, as a sweetener, and in culture media.
Also called malt sugar, maltobiose
[mawl-toh-bahy-ohs] /ˌmɔl toʊˈbaɪ oʊs/ (Show IPA)
1860-65; malt + -ose2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for maltose
  • It is a liquid and is made of maltose, glucose, and dextrose sugars.
  • Bacteria that are first exposed to lactose actually grow faster on maltose than bacteria that feed on maltose alone.
  • It's moister and plumper, with the skin sweet from maltose.
British Dictionary definitions for maltose


a disaccharide of glucose formed by the enzymic hydrolysis of starch: used in bacteriological culture media and as a nutrient in infant feeding. Formula: C12H22O11
Word Origin
C19: from malt + -ose²
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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maltose in Medicine

maltose mal·tose (môl'tōs', -tōz')
A white crystalline sugar formed during the digestion of starch.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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maltose in Science
A sugar made by the action of various enzymes on starch. It is formed in the body during digestion. Maltose is a disaccharide consisting of two linked glucose molecules. Chemical formula: C12H22O11.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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