uracil
noun
ura·cil
ˈyu̇r-ə-ˌsil 
-səl
Examples of uracil in a Sentence
Recent Examples on the Web
The team also detected adenine, guanine, cytosine, thymine and uracil — all five of the biological nucleobases, or components that make up the genetic code in DNA and RNA.
—
Ashley Strickland, CNN, 29 Jan. 2025
The other paper, in the journal Nature Astronomy, was even more tantalizing, reporting the discovery of all five nucleobases that make up DNA and RNA—adenine, guanine, cytosine, thymine, and uracil—in the Bennu samples.
—Jeffrey Kluger, TIME, 29 Jan. 2025
In an earlier study of a different asteroid named Ryugu, scientists only detected uracil and nicotinic acid.
—Paul Smaglik, Discover Magazine, 29 Jan. 2025
With that sample, scientists have found evidence suggesting that asteroids had delivered water to the early Earth, and discovered the presence of uracil — a building block of RNA, a molecule that helps form proteins.
—Katrina Miller, New York Times, 25 Sep. 2023
Meanwhile, scientists studying samples returned from the near-Earth asteroid Ryugu discovered vitamin B3 and an RNA compound called uracil.
—Ashley Strickland, CNN, 25 Mar. 2023
The molecules include uracil, a building block for RNA, as well as niacin, which is important to metabolism, ScienceAlert writes.
—Devika Rao, The Week, 22 Mar. 2023
Then, the team detected the signatures of uracil, niacin and other organic compounds containing nitrogen.
—Ashley Strickland, CNN, 21 Mar. 2023
Researchers just announced the discovery of the nucleobase uracil—one of the building blocks of RNA—in a sample from the asteroid Ryugu.
—Jackie Appel, Popular Mechanics, 21 Mar. 2023
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Ashley Strickland, CNN, 29 Jan. 2025
The other paper, in the journal Nature Astronomy, was even more tantalizing, reporting the discovery of all five nucleobases that make up DNA and RNA—adenine, guanine, cytosine, thymine, and uracil—in the Bennu samples.
—Jeffrey Kluger, TIME, 29 Jan. 2025
In an earlier study of a different asteroid named Ryugu, scientists only detected uracil and nicotinic acid.
—Paul Smaglik, Discover Magazine, 29 Jan. 2025
With that sample, scientists have found evidence suggesting that asteroids had delivered water to the early Earth, and discovered the presence of uracil — a building block of RNA, a molecule that helps form proteins.
—Katrina Miller, New York Times, 25 Sep. 2023
Meanwhile, scientists studying samples returned from the near-Earth asteroid Ryugu discovered vitamin B3 and an RNA compound called uracil.
—Ashley Strickland, CNN, 25 Mar. 2023
The molecules include uracil, a building block for RNA, as well as niacin, which is important to metabolism, ScienceAlert writes.
—Devika Rao, The Week, 22 Mar. 2023
Then, the team detected the signatures of uracil, niacin and other organic compounds containing nitrogen.
—Ashley Strickland, CNN, 21 Mar. 2023
Researchers just announced the discovery of the nucleobase uracil—one of the building blocks of RNA—in a sample from the asteroid Ryugu.
—Jackie Appel, Popular Mechanics, 21 Mar. 2023
Cite this Entry
“Uracil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uracil. Accessed 10 Mar. 2025.
Copy CitationKids Definition
uracil
noun
ura·cil
ˈyu̇r-ə-ˌsil
-səl
Medical Definition
uracil
noun
ura·cil
ˈyu̇r-ə-ˌsil, -səl
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