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WordReference Random House Unabridged Dictionary of American English © 2024raf•fi•nose (raf′ə nōs′),USA pronunciation n. [Biochem.]- Biochemistrya 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. Also called gossypose, melitose, melitriose.
- French raffin(er) to refine (see raffinate) + -ose2
- 1875–80
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