ribonucleic acid

ri·​bo·​nu·​cle·​ic acid | \ ˌrī-bō-nu̇-ˈklē-ik- How to pronounce ribonucleic acid (audio) , -nyu̇-, -ˌklā-\

Definition of ribonucleic acid

: rna

Examples of ribonucleic acid in a Sentence

Recent Examples on the Web

Inside the capsule is a single strand of ribonucleic acid, or RNA, that encodes the genetic information to make new virus particles. Patricia L. Foster, The Conversation, "A newly designed vaccine may help stamp out remaining polio cases worldwide," 13 Sep. 2019 The virus that causes EEE contains RNA, or ribonucleic acid, that fits into a tiny piece of microRNA in the cells of the victim’s lymph system. Hanna Krueger, BostonGlobe.com, "An intense EEE cycle is in full swing in Mass. Here are some little-known facts on the virus.," 6 Sep. 2019 Ebola’s genetic code, or genome, is contained in a strand of ribonucleic acid, or RNA, that is coiled tightly in the core of the particle. Richard Preston, The New Yorker, "Is Ebola Evolving Into a More Deadly Virus?," 7 Aug. 2019 To some biochemists, Hud’s attempts to find an evolutionary precursor to ribonucleic acid may have seemed a fool’s errand. Quanta Magazine, "Chemists Seek Possible Precursor to RNA," 5 Feb. 2014 The dominant theory to explain the origins of life — known as the RNA world hypothesis — regards ribonucleic acid as the first biological molecule. Quanta Magazine, "Chemists Seek Possible Precursor to RNA," 5 Feb. 2014 Using evidence gathered from each of their fields, the experts began piecing together a vast universal puzzle, revealing new theories on the emergence of complex molecules such as RNA (ribonucleic acid). Jill Kiedaisch, Popular Mechanics, "Life on Earth May Have Been Born From a Maelstrom of Molten Iron," 15 Jan. 2019 At the center of each virus is its genetic fingerprint (the ribonucleic acid, pink), surrounded by a protective protein shell (the nucleocapsid, yellow). Doug Criss, CNN, "5 things for March 28: North Korea & China, Sacramento, water park death, new organ," 28 Mar. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'ribonucleic acid.' 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 ribonucleic acid

1930, in the meaning defined above

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Last Updated

18 Sep 2019

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The first known use of ribonucleic acid was in 1930

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More Definitions for ribonucleic acid

ribonucleic acid

ri·​bo·​nu·​cle·​ic acid | \ ˌrī-bō-n(y)u̇-ˌklē-ik- How to pronounce ribonucleic acid (audio) , -ˌklā- How to pronounce ribonucleic acid (audio) \

Medical Definition of ribonucleic acid

: rna

More from Merriam-Webster on ribonucleic acid

Britannica.com: Encyclopedia article about ribonucleic acid

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