[ raf-uh-nohs ]
/ ˈræf əˌnoʊs /
Save This Word!

noun Biochemistry.
a colorless, crystalline trisaccharide, C18H32O16⋅5H2O, with little or no sweetness, occurring in the sugar beet, cottonseed, etc., and breaking down to fructose, glucose, and galactose on hydrolysis.
In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.
Meet Grammar CoachWrite or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar CoachImprove Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help
Also called gossypose, melitose, melitriose.

Origin of raffinose

1875–80; <French raffin(er) to refine (see raffinate) + -ose2
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use raffinose in a sentence

  • 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
  • The hydrolysis of raffinose presents several interesting possibilities.

    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
  • Of the higher sugars raffinose is fermented by juice from bottom yeast, but more slowly than cane sugar or maltose.

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: C 18 H 32 O 16

Word Origin for raffinose

C19: from French raffiner to refine + -ose ²
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

Scientific definitions for raffinose

[ răfə-nōs′ ]

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.