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

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 Scientists point the finger at the brain chemical adenosine for the endurance-sapping effects of mental fatigue. Alex Hutchinson, Outside Online, "Here’s What We Know About Mental Fatigue," 10 July 2018 But diltiazem was out of stock, and when two other drugs — adenosine and metoprolol — didn’t work, Mr. Alsina was admitted overnight. Katie Thomas, New York Times, "Emergency Rooms Run Out of Vital Drugs, and Patients Are Feeling It," 1 July 2018 Sleep pressure – our urge to sleep – is thought to arise because of the gradual release of adenosine in the brain. Linda Geddes, Smithsonian, "A Counterintuitive Idea for Treating Severe Depression: Stay Awake," 23 Jan. 2018 Also, beta-glucans and adenosine plump and smooth my eye area for brighter-looking eyes! Kathleen Hou, The Cut, "How I Used Korean Skin Care to Treat My Hormonal Acne," 9 Mar. 2018 Oshinsky explained that metabolizing large amounts of alcohol produces lots of acetate — which, in turn, can lead to high levels of adenosine., "Tips to avoid a Super Bowl hangover," 4 Feb. 2018 Ramus was born with adenosine deaminase deficiency (ADA), a condition also known as bubble boy disease that affects the immune system. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: National hunt takes pulse of ruffed grouse, woodcock populations," 27 Oct. 2017

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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Statistics for adenosine

Last Updated

20 May 2019

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Time Traveler for adenosine

The first known use of adenosine was circa 1909

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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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