cy·​ti·​dine ˈsi-tə-ˌdēn How to pronounce cytidine (audio) ˈsī- How to pronounce cytidine (audio)
: a nucleoside containing cytosine

Examples of cytidine in a Sentence

Recent Examples on the Web Early work showed molnupiravir inserts itself into RNA in place of the nucleoside cytidine, prompting errors in the copying process and causing a lethal buildup of mutations in the virus. Robert F. Service, Science | AAAS, 11 Mar. 2021 Creating this second base editor was harder than the first because an equivalent to the cytidine deaminase used by Dr Liu, which would be needed to pull it off, does not exist in nature. The Economist, 26 Oct. 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cytidine.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


cytosine + -idine

First Known Use

1911, in the meaning defined above

Time Traveler
The first known use of cytidine was in 1911

Dictionary Entries Near cytidine

Cite this Entry

“Cytidine.” Dictionary, Merriam-Webster, Accessed 17 Jun. 2024.

Medical Definition


cy·​ti·​dine ˈsit-ə-ˌdēn How to pronounce cytidine (audio) ˈsīt- How to pronounce cytidine (audio)
: a nucleoside containing cytosine
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