It has a pyrimidine ring structure. Understand the definition and structure of the compound uracil. Uracil is among the five nucleobases: adenine, guanine, cytosine, and thymine,but is only found in RNA. It was isolated from herring sperm and also produced in a laboratory in 1900–1901. unselfish d. an organic compound. Learn and practice the pronunciation of uracil. However, there are a few differences between the two molecules. Hydrogen bonds form between adenine and uracil, guanine and cytosine, and also guanine and uracil. Uracil ka hindi mein matalab, arth aur prayog. Pyrimidines are stabilized by resonance among atoms in the ring, which gives most of the bonds a partial double bond character. Each strand has a backbone made of alternating sugar. Understand the definition and structure of the compound uracil. Definition. Last updated. Learn the function of uracil, as well as its properties. Formula: C4H4N2O2 0. Then at that point mRNA,rRNA and the tRNA all comes together as one. Learn the function of uracil, as well as its properties. free vs. a graphic representation of this letter. It has a deoxyribose and phosphate backbone having four distinct bases: thymine, adenine, cytosine and guanine. uracil noun grammarStart studying DNA to mRNA Sequence Practice. ( A) A nucleotide (guanosine triphosphate). SHABDKOSH Apps. U exists in an RNA molecule instead of T (thymine) in DNA. You should be able to mark your mistakes quite easily. FIGURE 1. Spontaneous hydrolysis of cytosine changes it to a uracil. To these enzymes, it does not matter whether thymine or uracil binds to adenine. What is uracil in Malayalam? Pronunciation, translation, synonyms, examples, rhymes, definitions of uracil in Malayalam. English (UK) Pronunciation: Catalan Pronunciation: Chinese (Mandarin) Pronunciation: Chinese (China) Pronunciation: Chinese (Hong Kong) Pronunciation: Chinese (Taiwan) Pronunciation: Danish Pronunciation:Uracil: Definition & Structure. Uracil | Definition, Structure & Function. 4K . • One Lindahl unit is defined as the amount of enzyme necessary to release 1 µmol uracil at +37°C in 1 minute. Activity is measured by release of [3 H]-uracil in a 50 μl Standard Taq Reaction Buffer containing 0. Chapter 11 / Lesson 9. DNA is less reactive because of C-H bonds and RNA is more reactive beacause of C-OH bonds. Nucleic acids (NA) are key molecules that contain genetic information and participating in protein synthesis. Thymine. (YOOR-uh-sil) A chemical compound that is used to make one of the building blocks of RNA. Learn the function of uracil, as well as its properties. Perfect your pronunciation and sound like a native speaker today!uracil - Translation to Spanish, pronunciation, and forum discussions. Hence, compared to DNA, RNA molecules are relatively small. It pairs with adenine and is symbolised by U. 1. Definition of Uracil. 0:00 / 0:58 How to Pronounce "Uracil" 517 views May 13, 2019 0 Dislike Share Save Pronounce TV Have we pronounced this wrong? Teach everybody how you say it using. + improve definition Help us improve our definitions, add your own or improve one of these for the word uracil as a noun Type: Noun Verb Verb-Intransitive Verb-Transitive Adjective Pronoun Proper-noun Interjection Adverb Abbreviation Conjunction Synonyms Idiom Phrase Prefix Suffix Origin Slang Person Alternative forms Etymology Pronunciation. Uracil biosynthetic process Definition: The chemical reactions and pathways resulting in the formation of uracil, 2,4-dioxopyrimidine, one of the pyrimidine bases occurring in RNA, but not in DNA. A uracil is an unmethylated form of thymine. Thymine Definition. a phosphate group and a nitrogenous base, either Adenine, Guarine, Cytosine, Thymine, or Uracil. g. Related to this Question. Discover if uracil is found in DNA. pyrimidine: [noun] a feeble organic base C4H4N2 of penetrating odor. Julia. David. This can account for its utilization in RNA. David. They consist of a six-membered ring with two nitrogen atoms and four carbon atoms, but instead of being an aromatic ring with alternating double and single bonds they all have a ketone (carbonyl group) on the 2′ carbon atom (the carbon between the two. Sample translated sentence: Nukleotid u RNK, ali ne i DNK je uracil? ↔ The nucleotide in RNA but not DNA- -. The sequence of the four nucleotide bases encodes DNA’s information. Les pyrimidines possèdent un cycle azoté hexagonal comprenant quatre atomes de carbone et deux d' azote. In general, uracil occurs in RNA, not in DNA. The two main types of nucleic acids are deoxyribonucleic acid (DNA)ribonucleic acid (RNA). It is a member of pyrimidines and a diazine. 3. coli it hydrolyzes uracil-glycosidic bonds in single- or double-stranded DNA, excising uracil and creating alkali-sensitive abasic sites in the DNA. Its nucleoside contains a pyrimidine base, i. Our native speakers' recordings feature English and American spellings and definitions, delivering a natural and clear sound. 4K . Class of nucleotides with two. a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine. Forums. Card 1 of 50. In DNA, guanine is paired with cytosine. DNA vs. The pyrimidines in DNA are cytosine and thymine; in RNA, they are cytosine and uracil. A nitrogenous base is an organic molecule that contains the element nitrogen and acts as a base in chemical reactions. 3 Deamination of cytosine, a rather frequent process that readily occurs under. RNA contains the nucleotides adenine, guanine, cytosine and uracil (U). All nucleic acids contain the bases A, C, and G; T, however, is found only in DNA, while U is found in RNA. Thus, it only has one ring. n. New. Learn the function of uracil, as well as its properties. Uracil (Lamivudine EP Impurity F) is a nitrogenous base on RNA nucleosides. The nitrogenous bases can be divided into two categories: purines and pyrimidines. The molecular formula of uracil is C 4 H 4 N 2 O 2, while the molecular formula of uridine is C. Uracil (U): Uracil is a weak acid with the chemical compound C 4 H 4 N 2 O 2. The genetic code is the sequence of nucleotide bases in nucleic acids ( DNA and RNA) that code for amino acid chains in proteins. SHABDKOSH Apps. Cytosine, Thymine, and Uracil. Video shows what uracil means. It is referred to as a pyrimidine, along with cytosine and thymine nucleobases. This means that it has a ribose as its sugar constituent with three phosphate groups attached. Learn how to say Phosphodiester with EmmaSaying free pronunciation tutorials. : 250 The other diazines are pyrazine (nitrogen atoms at the. Share the Definition of uracil on Twitter Twitter. How to say acetylation in English? Pronunciation of acetylation with 2 audio pronunciations, 3 synonyms, 2 meanings, 14 translations, 1 sentence and more for acetylation. Because the phosphate groups on a ribonucleic acid molecule carry negative charges, RNA is also electrically charged. 0) and 20 mM ammonium sulfate. Molecular Formula. It has a role as an antithyroid drug and a metabolite. Uracil Structure. Copyright ©. Become a Study. The UNG gene is located on chromosome 12q24. or. haɪˈdrɒksɪl. They were first described by Dr. RNA. US English. Noun [ edit] English Wikipedia has an article on: directionality (molecular biology) § 3′ end. uracil. The ribose sugar of RNA is a cyclical structure consisting of five. Discover if uracil is found in DNA. Chapter 11 / Lesson 9. DNA polymerase. Definition. B. It is readily deaminated into uracil through spontaneous reactions as it is unstable. Translation. The nitrogenous bases include adenine, guanine, uracil, and cytosine. Uracil is one of the nucleobases in the RNA, such as adenine, Guanine and cytosine where as in all living beings that contains DNA, lack uracil in its nucleotide base pairs. Mark. Description. Uracil is. In RNA, thymine is replaced by uracil. Uracil: Definition & Structure. US English. Learn the function of uracil, as well as its properties. Cytosine base bonds with guanine via 3 hydrogen bonds in nuclei acids. Tegafur is converted to fluorouracil by the CYP isoenzymes, and uracil prevents further degradation by competitive inhibition of dihydropyrimidine dehydrogenase [2R ]. Polymers (Basel) . 4K . Definition. You'll be able to mark your mistakes quite. It also has one ring of carbon, which makes it a pyrimidine. In RNA, uracil binds to. Uracil: Definition & Structure. n. Definition: It is a long polymer. uracil (yoor-ă-sil) n. Definition and meaning were removed to avoid copyright violation, but you can find them h. This seems to be the case for the use of Adenine in ATP. Definition RNA molecule sugar is ribose while molecule of DNA is deoxyribose. The process by which this occurs is called transcription. Uracil: Definition & Structure. Uridine triphosphate (UTP) is a nucleoside phosphate in being comprised of a ribonucleoside and three phosphate groups. Uracil 3. WikiMatrix Magkakaiba rin ang mga posibleng nitrohenong beis na makikita sa dalawang klase ng asido nukleiko: adenine, cytosine, at guanine ay posible sa RNA at DNA, subalit ang thymine ay posible lamang sa DNA at ang uracil ay posible. . Atoms or groups attached to this ring. The other nucleotide that can bond with adenine is thymine. Record yourself saying 'uracil' in full sentences, then watch yourself and listen. DNA pairing is A,T and C,G which is Adenine and Thymine and Guanine and Cytosone. Uracil. . WordSense Dictionary: uracil - spelling, hyphenation, synonyms, translations, meanings & definitions. RNA is chemically similar to DNA except that its sugars. Guanine, 1. Although this enzyme has evolved to remove uracil from. Look through examples of uracil translation in sentences, listen to pronunciation and learn grammar. Each nucleotide that makes up a nucleic acid is comprised of phosphoric acid, sugar (5-carbon), and nucleobase. The hetero cyclic aromatic structure of the uracil is characterized by the keto groups at carbon-2 and carbon 4. Uracil is a pyrimidine base, which is an essential constituent of RNA. [2] uracil: [ u´rah-sil ] a pyrimidine base found in ribonucleic acid (RNA). Uracil is similar to thymine in terms of structure except for the methyl group at position 5 in the heterocyclic aromatic ring present in thymine. uracil noun. Biochemistry a pyrimidine base, C 4 H 4 N 2 O 2, that is one of the fundamental components of RNA, in which it forms base pairs with adenine. Definition guanine: [noun] a purine base C5H5N5O that codes genetic information in the polynucleotide chain of DNA or RNA — compare adenine, cytosine, thymine, uracil. What is Uracil. Definition and meaning can be found here:How to pronounce oropharynx and what is oropharynx. [1] It was patented in 1967 and approved for medical use in 1972. deoxyribose. 00:00. 4K . Vad är Uracil - Definition, struktur, egenskaper 2. A purine (adenine or guanine) or pyrimidine (uracil or cytosine) is attached to the 1' carbon of the sugar. Uracil definition: a pyrimidine base, C4H4N2O2, that is one of the fundamental components of RNA, in which it forms base pairs with adenine. Look through examples of Uracil translation in sentences, listen to pronunciation and learn grammar. U (Uracil) is always inserted opposite to A (Adenine). There are three major types of RNA involved in this process: (1) messenger RNA (mRNA), (2) transfer RNA (tRNA), and (3) ribosomal RNA (rRNA). Discover if uracil is found in DNA. DNA and RNA base pairing is slightly different since DNA uses the bases adenine, thymine, cytosine, and guanine; RNA uses adenine, uracil, cytosine, and guanine. It is a thiocarbonyl compound and a nucleobase analogue. Pseudouridine (abbreviated by the Greek letter psi- Ψ) [1] is an isomer of the nucleoside uridine in which the uracil is attached via a carbon-carbon instead of a nitrogen-carbon glycosidic bond . Cytosine 2. Understand the definition and structure of the compound uracil. Julia. 4K . Chapter 11 / Lesson 9. Den innehåller två ketogrupper vid C-2 och C-4 i dess heterocykliska pyrimidinring. e. Thus, adenine complementary base pairs with uracil in RNAs. With the help of enzyme uracil glycosylase such defects in. Uracil is only found in RNA, while thymine is only found in DNA. The response rate is improved by adding leucovorin [ 107R ]. Monoisotopic mass 112. When reading a yeast genotype if you get gene name in capital letters it means the gene is functional, if the gene is written in lower case letters, the gene is mutated. RNA polymerase function. Understand the definition and structure of the compound uracil. Definition: Gene. Heterocyclic compounds are stable, ring-shaped compounds in which not. A portion of DNA whose sequence of nucleotides codes for a protein. Uracil is a colorless crystalline organic molecule with the chemical formula C 4 H 4 N 2 O 2. In this article, we will explore the difference between uracyl and uracil and clarify which one is. uracil is the translation of "Uracil" into English. Subscribe for more videos!Here are 4 tips that should help you perfect your pronunciation of 'uracil': Break 'uracil' down into sounds : [YOOR] + [UH] + [SIL] - say it out loud and exaggerate the sounds. The carbon atoms in the sugar are numbered 1' through 5'. DNA is a very long molecule; it is estimated that human DNA is composed of around 3 billion nucleotides. Pyrimidine is a cyclic organic compound with a ring of 6 atoms; four carbon atoms with attached hydrogen or side chain and 2 nitrogen atoms at -1, and -3 positions. Study with Quizlet and memorize flashcards containing terms like DNA and RNA are polymers composed of _____ monomers. Subscribe for more videos!Figure 10. But in RNA, what replaces thymine?Study with Quizlet and memorize flashcards containing terms like Definition: DNA, Definition: Chromosome, In-Depth: DNA/RNA Structure and more. In RNA, uracil pairs with adenine. A pyrimidine is a six-membered nitrogen heterocyclic compound with the molecular formula C 4 H 4 N 2. US English. two DNA double helices. Like the UNG from E. Zira. Browse nearby or related words. Definitions of uracil. This base pairing is necessary for the stability and folding of RNA molecules, and recognition of RNA sequences. nobeastsofierce/Science Photo Library. Adenine (not adenosine) 2. . The N and C atoms are bonded with hydrogen or. Discover if uracil is found in DNA. Related to this Question. adenine: [noun] a purine base C5H5N5 that codes hereditary information in the genetic code in DNA and RNA — compare cytosine, guanine, thymine, uracil. Having been provided to the early Earth as a component in such asteroidal materials, these molecules might have played a role. Pyrimidine is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Unlike DNA, however, RNA is most often single-stranded. synonyms: U. Both uridine and uracil are essential components of RNA. uracil: A pyrimidine derivative andone of the major component bases ofnucleotides and the nucleic acidRNA. As for the nitrogenous base (or nucleobase) component, the common bases are adenine (A), guanine (G), cytosine (C), and uracil (U). Nucleotide Definition. uracil. Cytosine, thymine, and uracil are pyrimidine nucleobases. Auxotroph refers to any microorganism that has lost the ability to synthesize an organic compound required for its growth, usually as a result of. Sample translated sentence: TRMA may refer to: tRNA (uracil-5-)-methyltransferase, an enzyme Thiamine responsive megaloblastic anemia ↔ TRNK (uracil-5-)-metiltransferaza, enzim Tiamin-responzivna megaloblastna anemijaOne of the most fundamental building blocks of these molecules is the nitrogenous base uracil, which is found in RNA in place of thymine. Background Total neoadjuvant therapy (TNT) is a novel treatment strategy that is an alternative to preoperative chemoradiotherapy (CRT) for locally advanced rectal cancer (LARC). When base pairing with adenine, uracil acts as both a hydrogen bond acceptor and a hydrogen bond donor. Does adenine pair with uracil in. What is definition of uracil? Listen to pronunciation. Definition of nucleotide. Uracil like other pyrimidines is an aromatic heterocyclic compound with a pyrimidine ring that comprises alternating nitrogen and carbon atoms. This lesson covers the following objectives: Outlining the bases that support the formation of DNA1. . Cytosine forms a component of nuclei acids in form of nucleoside or nucleotide and has a melting point of 320-325 °C. US English. Etymology: The term “thymine” is derived from the Greek word “thumos,” meaning “spirit” or “soul,” due to its association with thymus glands. Codon (definition) three-nucleotide sequence on messenger RNA that codes for a single amino acid. Break 'uracil' down into sounds: [YOOR] + [UH] + [SIL] - say it out loud and exaggerate the sounds until you can consistently produce them. This video shows you how to pronounce VascularIdentical copies of DNA reside in every single cell of an organism, from a lung cell to a muscle cell to a neuron. In RNA, the nucleotide thymine is replaced with _____. Definition English: A uracil nucleotide containing a pyrophosphate group esterified to C5 of the sugar moiety. Transcription and translation are the two processes that convert a sequence of nucleotides from DNA into a sequence of amino acids to build the desired protein. The bases combine with the sugar to make the nucleotides adenosine, guanosine, cytidine, thymidine, and uridine. US English. Helicase. Uracil . ChEBI: 5,6-dihydrouracil is a pyrimidine obtained by formal addition of hydrogen across the 5,6-position of uracil. guanine: [noun] a purine base C5H5N5O that codes genetic information in the polynucleotide chain of DNA or RNA — compare adenine, cytosine, thymine, uracil. | Meaning, pronunciation, translations and examples in American English Uracil definition: A colorless, crystalline, pyrimidine base, C 4 H 4 N 2 O 2 , that occurs as a constituent of RNA. The meaning of URACIL is a pyrimidine base C4H4N2O2 that is one of the four bases coding genetic information in the polynucleotide chain of RNA. 5,6-Dihydrouracil acts as an intermediate in the catabolism of uracil. Pick your prefered accent: Alex. 9. Base pairs refer to the sets of hydrogen-linked nucleobases that make up nucleic acids DNA and RNA. 027275 Da. Here are 4 tips that should help you perfect your pronunciation of 'uracil': Break 'uracil' down into sounds : [YOOR] + [UH] + [SIL] - say it out loud and exaggerate the sounds until you can consistently produce them. Base + sugar + phosphate. Scientific context: - "Uracil is a pyrimidine base that replaces thymine in RNA molecules. 08676 g/mol and a melting point of 335 °C. Etymology: The term “thymine” is derived from the Greek word “thumos,” meaning “spirit” or “soul,” due to its association with thymus glands. Post the Definition of uracil to Facebook Facebook. Fun Facts about the name Uracil. Find uracil similar words, uracil synonyms. Term. A nucleic acid base (or nucleobase) is a nitrogen heterocyclic compound, which serves as the informational monomer of ribonucleic acids (RNA) and deoxyribonucleic acids (DNA), the biopolymers responsible for the storage and transmission of genetic information. from . uracil - WordReference English dictionary, questions, discussion and forums. Definition. Definition and meaning can be found here:One unit is defined as the amount of Uracil-DNA Glycosylase required to completely degrade 1 μg purified single-stranded uracil-containing DNA (bacteriophage M13, grown in E. This video shows pronunciation of uracil in a sentence, uracil meaning, uracil definition, uracil phonetic, uracil synonym and uracil exampleuracil Definitio. This means that it has a ribose as its sugar constituent with one phosphate group attached. The reason is RNA editing: the alteration of the sequence of nucleotides in the RNA. The name of the base is generally used as the name of the nucleotide, although this is technically incorrect. It was isolated from herring sperm and also produced in a laboratory in 1900–1901. unselfish d. Uracil definition, pronuniation, antonyms, synonyms and example sentences in Hindi. Nucleic acids. Both take part in nucleic acid synthesis and metabolism. Sample translated sentence: In RNA, thymine is replaced by uracil (U). Uracil (Lamivudine EP Impurity F) is a nitrogenous base on RNA nucleosides. DefinitionUracil was identified in the sample returned from the asteroid Ryugu. See uracil meaning in Marathi, uracil definition, translation and meaning of uracil in Marathi. Uracil produces urea and maleic acid upon oxidative degradation in the presence of hydrogen peroxide and ferrous ions. In DNA and RNA, cytosine. The replication of DNA occurs during the synthesis phase, or S phase, of the cell cycle, before the cell enters mitosis or meiosis. io free pronunciation tutorials. Synonyms. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine Synonyms : U; SHABDKOSH Apps. The transfer of genetic material in the form of DNA fragments from one cell to another or from one organism to another. It has adenine, thymine, Guanine and Cytosine, where adenine pairs up with thymine and guanine pairs up with cytosine, in case of RNA, thymine is replaced. an original parent DNA strand and one newly synthesized DNA strand comprising a new DNA molecule. Guanine ( / ˈɡwɑːnɪn / ⓘ) ( symbol G or Gua) is one of the four main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine ( uracil in RNA). Which of the following is found in protein, but is not found in DNA? (a) Sulfur (b) Phosphorous (c) Carbon (d) Nitrogen (e) Oxygen. Guanine (G) is one of the four nucleotide bases in DNA, with the other three being adenine (A), cytosine (C) and thymine (T). Uracil: Definition, Structure, and Function. Vad är skillnaden mellan Uracil och Thymine. It is a type of pyrimidine. . The RNA code contains a U instead of a T – uracil instead of thymine. How to say Lyme all uracil in English? Pronunciation of Lyme all uracil with and more for Lyme all uracil. When a cell divides, it is important that each daughter cell receives an identical copy of the DNA. nonconformity Use the word bank to answer the question. uracil. Pronunciation [edit] IPA : /ˈjʊərəsɪl/ Noun [edit] uracil (countable and uncountable, plural uracils) (organic chemistry) One of the bases of RNA, pairing with. Uracil-ftorafur is a combination of tegafur, an oral prodrug of fluorouracil, and uracil in a 1:4 molar ratio. . Uracil (Lamivudine EP Impurity F) is a nitrogenous base on RNA nucleosides. piqued and more. A pyrimidine is an organic ring consisting of six atoms: 4 carbon atoms and 2 nitrogen atoms. Press and start speaking. Like the UNG from E. Originally discovered in 1900, it was isolated by hydrolysis of yeast nuclein that was found in bovine thymus and spleen, herring sperm, and wheat germ. Biomedical Pronunciation Guide. Definition. Purines are the other family of nitrogenous bases. Discover if uracil is. Uracil: Uracil is one of the two nucleotide bases that can bond with adenine in a genomic molecule. A phosphate group attached to the 3' carbon of one ribose molecule attaches to the 5' carbon of the next ribose molecule. Demethylation is a chemical process in the removal of CH 3 (or a methyl group) from a molecule. The RNA molecule consists of a sequence of nucleotides, each containing a five-carbon sugar (ribose), a phosphate group, and a nitrogenous base. Learn the function of uracil, as well as its properties. Definition. guanine. ura· cil ˈyu̇r-ə-ˌsil, -səl. The three pyrimidine nitrogenous bases, thymine (T), cytosine (C), and uracil (U), are modified forms of the aromatic compound pyrimidine. io free pronunciation tutorials. Uracil is one of the nucleobases in the RNA, such as adenine, Guanine and cytosine where as in all living beings that contains DNA, lack uracil in its nucleotide base pairs. Uracil is a common and naturally occurring pyrimidine nucleobase in which the pyrimidine ring is substituted with two oxo groups at positions 2 and 4. Refine your pronunciation of uracil with our free online dictionary. a base containing nitrogen that is found in RNA (but not in DNA) and derived from pyrimidine; pairs with adenine. e. The following products are also available:uracil - Meaning in English, what is the meaning of uracil in English dictionary, pronunciation, synonyms, usage examples and definitions of uracil in English and English. Which base will pair with uracil in RNA? Adenine. How to say Fluorouracil in English? Pronunciation of Fluorouracil with 1 audio pronunciation and more for Fluorouracil. Chapter 11 / Lesson 9. Pyrimidines can be identified by their structure: six atoms in the shape of a ring. looted b. Uracil-DNA glycosylase (UDG) is a highly conserved repair enzyme that catalyzes the excision of uracil from uracil-containing single- and double-stranded DNA 1,2,3,4,5,6,7. metabolism: Pyrimidine ribonucleotides. noun. How unique is the name Uracil? Out of 6,311,504 records in the U. By intravenous injection it is used for treatment of colorectal cancer, oesophageal cancer, stomach cancer, pancreatic cancer, breast cancer, and cervical cancer. With the formula C 5 H 5 N 5 O, guanine is a derivative of purine. | 意思、发音、翻译及示例RNA is a molecule that has a slightly different structure than DNA: RNA is single-stranded (as opposed to the double-stranded DNA), and contains the nitrogenous base uracil rather than thymine. Uracil [edit | edit source]. Sample translated sentence: Gumagamit ng U (“uracil”) ang RNA sa halip na T ↔ RNA uses U (uracil) instead of T . The four nitrogenous bases in DNA. 3. The nitrogenous bases in RNA are adenine, guanine, cytosine, and uracil, which replaces thymine in DNA. Cytosine base bonds with guanine via 3 hydrogen bonds in nuclei acids. It is a part of both nucleosides and a nucleotide. 2. Polyols Citations. 4K . US English. ura· cil ˈyu̇r-ə-ˌsilUracil like other pyrimidines is an aromatic heterocyclic compound with a pyrimidine ring that comprises alternating nitrogen and carbon atoms. uracil noun grammar (chemistry) One of the bases of RNA. English multilingual translator. Five nucleobases— adenine (A), cytosine (C), guanine (G), thymine (T), and uracil (U)—are called primary or canonical. Understand the definition and structure of the compound uracil. Here are some tips on how to effectively incorporate this word or phrase into your writing: 1. US English. Synonyms : U.