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[raf-uh-nohs] /ˈræf əˌnoʊs/
noun, Biochemistry.
a colorless, crystalline trisaccharide, C 1 8 H 3 2 O 1 6 ⋅5H 2 O, with little or no sweetness, occurring in the sugar beet, cottonseed, etc., and breaking down to fructose, glucose, and galactose on hydrolysis.
Also called gossypose, melitose, melitriose.
Origin of raffinose
1875-80; < French raffin(er) to refine (see raffinate) + -ose2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for raffinose
Historical Examples
  • It is a constituent of sucrose, of raffinose, and of the polysaccharide inulin, from which it may be obtained by hydrolysis.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
  • Three trisaccharides which are non-reducing sugars are found in plants; namely, raffinose, gentianose, and melizitose.

    The Chemistry of Plant Life Roscoe Wilfred Thatcher
  • The hydrolysis of raffinose presents several interesting possibilities.

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


/ˈræfɪˌnəʊz; -ˌnəʊs/
(biochem) a trisaccharide of fructose, glucose, and galactose that occurs in sugar beet, cotton seed, certain cereals, etc. Formula: C18H32O16
Word Origin
C19: from French raffiner to refine + -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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raffinose in Science
A white crystalline sugar obtained from cottonseed meal, sugar beets, and molasses. Raffinose is an oligosaccharide, consisting of three simple sugars (fructose, galactose, and glucose) linked together. Chemical formula: C18H32O16.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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