Definition of ribose in English:

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Pronunciation: /ˈrʌɪbəʊz/
Pronunciation: /ˈrʌɪbəʊs/


[mass noun] Chemistry
A sugar of the pentose class which occurs widely in nature as a constituent of nucleosides and several vitamins and enzymes.
Example sentences
  • In undiluted samples, ribose, fructose, rhamnose, glucose, and one unidentified sugar were detected at low concentrations (data not shown).
  • Sugars are vital components of life, e.g. the 5-carbon sugars ribose and deoxyribose are part of the skeletons of our information storage molecules, RNA and DNA respectively.
  • Another difference between DNA and RNA is that RNA contains ribose, rather than deoxyribose.


Late 19th century: arbitrary alteration of arabinose, a related sugar.

For editors and proofreaders

Line breaks: ri¦bose

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