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[dee-ok-si-rahy-bohs] /diˌɒk sɪˈraɪ boʊs/
noun, Biochemistry
any of certain carbohydrates derived from ribose by the replacement of a hydroxyl group with a hydrogen atom.
the sugar, HOCH 2 (CHOH) 2 CH 2 CHO, obtained from DNA by hydrolysis.
1930-35; deoxy- + ribose Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for deoxyribose
  • The two uprights of this ladder are composed of molecules of a sugar called deoxyribose.
  • Below the phosphate group on the diagram is a deoxyribose sugar molecule, shaded in pink.
  • A notable exception, deoxyribose, as its name suggests, has a missing oxygen atom.
British Dictionary definitions for deoxyribose


/diːˌɒksɪˈraɪbəʊs; -bəʊz/
a pentose sugar obtained by the hydrolysis of DNA. Formula: C5H10O4
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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Word Origin and History for deoxyribose

1931, from deoxy- (because the 2' hydroxyl (-OH) in the sugar is in this case reduced to a hydrogen (H) by loss of an oxygen) + ribose.

Online Etymology Dictionary, © 2010 Douglas Harper
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deoxyribose in Medicine

deoxyribose de·ox·y·ri·bose (dē-ŏk'sē-rī'bōs')
A sugar that is a constituent of DNA.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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deoxyribose in Science
The sugar found in the side chains of DNA, differing from ribose in having a hydrogen atom instead of an OH group on one of its carbon atoms. Chemical formula: C5H10O4.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for deoxyribose

five-carbon sugar component of DNA (q.v.; deoxyribonucleic acid), where it alternates with phosphate groups to form the "backbone" of the DNA polymer and binds to nitrogenous bases. The presence of deoxyribose instead of ribose is one difference between DNA and RNA (ribonucleic acid). Deoxyribose was synthesized in 1935, but it was not isolated from DNA until 1954.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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