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[man-ohs] /ˈmæn oʊs/
noun, Chemistry.
a hexose, C 6 H 1 2 O 6 , obtained from the hydrolysis of the ivory nut and yielding mannitol upon reduction.
Origin of mannose
First recorded in 1885-90; mann(a) + -ose2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for mannose
Historical Examples
  • It appears to be resolved by ultimate hydrolysis into dextrose and mannose.

  • The osones from glucose, mannose, and fructose are identical.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
  • The process is reversible; mannose can be converted to mannonic acid, thence to gluconic acid, thence to glucose.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
  • The hydrazones of the common sugars, with the exception of the one from mannose, are colorless compounds, easily soluble in water.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
  • Mannan bears the same relation to mannose that starch does to glucose and inulin to fructose.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
British Dictionary definitions for mannose


/ˈmænəʊs; -nəʊz/
a hexose sugar found in mannitol and many polysaccharides. Formula: C6H12O6
Word Origin
C20: from manna + -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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mannose in Medicine

mannose man·nose (mān'ōs')
A monosaccharide obtained from various plants by the oxidation of mannitol.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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mannose in Science
A naturally occurring simple sugar that is a stereoisomer of glucose. Chemical formula: C6H12O6.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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