aden·​o·​sine | \ ə-ˈde-nə-ˌsēn How to pronounce adenosine (audio) , -sən \

Definition of adenosine

: a nucleoside C10H13N5O4 that is a constituent of RNA and yields adenine and ribose on hydrolysis

Examples of adenosine in a Sentence

Recent Examples on the Web However, the analog's molecular makeup differs from real adenosine just enough to grind the copying process to a halt. Lila Thulin, Smithsonian Magazine, "Remdesivir Works Against Many Viruses. Why Aren’t There More Drugs Like It?," 13 May 2020 The drug Remdesivir is basically an altered version of the natural building block adenosine – which is essential for DNA and RNA. Katherine Seley-radtke, The Conversation, "Remdesivir explained – what makes this drug work against viruses?," 6 May 2020 The cream uses peach and apricot extracts and shea butter to nourish dry skin, and adenosine, an anti-wrinkle ingredient, to smooth the hands. Jessica Kasparian, USA TODAY, "Washing your hands a lot? These 10 creams revive your skin," 4 Mar. 2020 The findings were controversial until scientists uncovered a family of enzymes called adenosine deaminases acting on RNA (ADARs). Sara Reardon, Scientific American, "Step Aside, CRISPR: RNA Editing Is Taking Off," 5 Feb. 2020 Another theory holds that caffeine acts as a diuretic by working on receptors for the neurotransmitter adenosine in a way that changes your body’s sodium and fluid balance. Korin Miller, SELF, "Is Coffee Actually Dehydrating?," 6 Mar. 2019 The longer caffeine blocks adenosine, the greater the quantity of adenosine build up in your system. Mayo Oshin, Quartzy, "Five scientifically proven ways to fall asleep faster," 19 June 2019 This temporary and localized fuel shortage triggers a rise in adenosine levels, which in turn blocks the release of neurotransmitters like dopamine. Alex Hutchinson, Outside Online, "Here’s What We Know About Mental Fatigue," 10 July 2018 Caffeine can block different adenosine receptors in your body, tricking your system into thinking that it’s not time to go to bed yet. Korin Miller, SELF, "7 Mistakes You Make Right Before Bed That Are Ruining Your Sleep," 28 Nov. 2018

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

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First Known Use of adenosine

circa 1909, in the meaning defined above

History and Etymology for adenosine

borrowed from German Adenosin, blend of Adenin adenine and Ribose ribose

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Time Traveler for adenosine

Time Traveler

The first known use of adenosine was circa 1909

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Cite this Entry

“Adenosine.” Dictionary, Merriam-Webster, Accessed 12 May. 2021.

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More Definitions for adenosine


aden·​o·​sine | \ ə-ˈden-ə-ˌsēn, -sən How to pronounce adenosine (audio) \

Medical Definition of adenosine

: a nucleoside C10H13N5O4 that is a constituent of RNA yielding adenine and ribose on hydrolysis

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