ri·​bose | \ ˈrī-ˌbōs How to pronounce ribose (audio) , -ˌbōz\

Definition of ribose

: a pentose C5H10O5 found especially in the dextrorotatory form as a component of many nucleosides (such as adenosine and guanosine) especially in RNA

Examples of ribose in a Sentence

Recent Examples on the Web

Hud’s team set out to tackle the next problem in RNA assembly: How do bases attach to the ribose sugar? Quanta Magazine, "Chemists Seek Possible Precursor to RNA," 5 Feb. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ribose.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of ribose

1892, in the meaning defined above

History and Etymology for ribose

International Scientific Vocabulary, from ribonic acid an acid C5H10O6 obtained by oxidation of ribose

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Statistics for ribose

Last Updated

28 Jul 2019

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Time Traveler for ribose

The first known use of ribose was in 1892

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More Definitions for ribose


ri·​bose | \ ˈrī-ˌbōs, -ˌbōz How to pronounce ribose (audio) \

Medical Definition of ribose

: a pentose C5H10O5 found especially in the levorotatory D-form as a constituent of a number of nucleosides (as adenosine, cytidine, and guanosine) especially in RNA

More from Merriam-Webster on ribose

Rhyming Dictionary: Words that rhyme with ribose

Britannica.com: Encyclopedia article about ribose

Comments on ribose

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miscellaneous remnants or debris

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