ribose

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ri·bose

 (rī′bōs′)
n.
A pentose sugar, C5H10O5, that is a constituent of RNA and of certain vitamins and coenzymes.

[German, alteration of English arabinose, a kind of sugar : (gum) arab(ic) + -in + -ose.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ribose

(ˈraɪbəʊz; -bəʊs)
n
(Biochemistry) biochem a pentose sugar that is an isomeric form of arabinose and that occurs in RNA and riboflavin. Formula: CH2OH(CHOH)3CHO
[C20: changed from arabinose]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ri•bose

(ˈraɪ boʊs)

n.
a white, crystalline, water-soluble, slightly sweet solid, C5H10O5, a pentose sugar obtained by the hydrolysis of RNA.
[< German Ribose, earlier Ribonsäure (1891) =Ribon (from Arabinose arabinose, by arbitrary rearrangement and shortening) + Säure acid]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.ribose - a pentose sugar important as a component of ribonucleic acid
carbohydrate, saccharide, sugar - an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain
ribonucleic acid, RNA - (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell; "ribonucleic acid is the genetic material of some viruses"
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