gua·​no·​sine | \ ˈgwä-nə-ˌsēn How to pronounce guanosine (audio) \

Definition of guanosine

: a nucleoside C10H13N5O5 composed of guanine and ribose

Examples of guanosine in a Sentence

Recent Examples on the Web Although not one of the canonical RNA bases, inosine is read by the cell’s protein-translation machinery as the familiar guanosine. Sara Reardon, Scientific American, 5 Feb. 2020

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

First Known Use of guanosine

1909, in the meaning defined above

History and Etymology for guanosine

guan- (as in guanine) + ribose + -ine

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Time Traveler for guanosine

Time Traveler

The first known use of guanosine was in 1909

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Dictionary Entries Near guanosine

guano sack


guanosine monophosphate

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Statistics for guanosine

Cite this Entry

“Guanosine.” Dictionary, Merriam-Webster, Accessed 6 Dec. 2021.

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More Definitions for guanosine


gua·​no·​sine | \ ˈgwän-ə-ˌsēn How to pronounce guanosine (audio) \

Medical Definition of guanosine

: a nucleoside C10H13N5O5 composed of guanine and ribose


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