adenosine

noun

aden·​o·​sine ə-ˈde-nə-ˌsēn 

-sən

: 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

Psychology professor Anu Realo of the University of Warwick said the positive effects happen after caffeine blocks adenosine receptors in the brain. —Andrea Margolis, FOXNews.com, 29 Aug. 2025

Throughout the day, adenosine builds up in your brain, creating a feeling of tiredness. —Allison Palmer august 19, Sacbee.com, 19 Aug. 2025

Malone explained that over time, however, your brain adapts by adding more adenosine receptors, which makes caffeine less effective at the same dose. —Mira Miller, Verywell Health, 25 July 2025

Designed to smooth and hydrate the delicate skin on your neck and décolleté, this two-piece mask is soaked in peptides, adenosine, and vegan collagen. —Brigitt Earley, Glamour, 10 July 2025

Word History

Etymology

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

First Known Use

circa 1909, in the meaning defined above

Phrases Containing adenosine

• adenosine diphosphate
• adenosine monophosphate
• adenosine triphosphatase
• adenosine triphosphate

Rhymes for adenosine

• acetylene
• amphetamine
• anthropocene
• antipyrine
• apomorphine
• apoprotein
• aquamarine
• arsphenamine
• azobenzene
• buprenorphine
• chlorobenzene
• chlorpromazine

Medical Definition

adenosine

noun

aden·​o·​sine ə-ˈden-ə-ˌsēn, -sən 

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