Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A single-ringed, crystalline organic base, C4H4N2, that forms uracil, cytosine, or thymine and is the parent compound of many drugs, including the barbiturates.
- n. Any of several organic compounds derived from or structurally related to pyrimidine, especially the nitrogen bases uracil, cytosine, and thymine.
Century Dictionary and Cyclopedia
- n. An organic compound, composed of carbon, hydrogen, and nitrogen, so arranged that the carbon and nitrogen atoms form a ring or chain, as shown in the formula . Pyrimidine is the mother-substance of such bodies, occurring in the animal and vegetable organism, as cytosin, uracil, and thymin. Alloxan, which is an essential component of the purin group, is also a derivative of pyrimidine, and a close relationship thus exists between the purin and pyrimidine bodies.
Wiktionary
- n. organic chemistry A diazine in which the two nitrogen atoms are in the meta- positions; it is the basis of three of the bases found in DNA and RNA, thymine, uracil and cytosine
WordNet 3.0
- n. any of several basic compounds derived from pyrimidine
- n. a heterocyclic organic compound with a penetrating odor
Etymologies
- Alteration of pyridine. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“From these results Funk believed the vitamine to belong to a class of substances known as the pyrimidine bases.”
“To improve the fit, researchers led by chemical biologist Nathanael Gray, PhD, prepared a group of inhibitors with a different structural scaffold, known as a pyrimidine core, which, it was thought, would mesh more thoroughly.”
“Recommended name pyrimidine-deoxynucleoside 2'-dioxygenase Synonyms deoxyuridine”
“D. Sutherland, Synthesis of activated pyrimidine ribonucleotides in prebiotically plausible conditions, Nature 459, 239 (2009). doi: 10.1038/nature08013.”
“Furthermore, although Powner and colleagues 'synthetic sequence yields the pyrimidine ribonucleotides, it cannot explain how purine ribonucleotides (which incorporate guanine and adenine) might have formed.”
“Of the many difficulties encountered by those in the field, the most frustrating has been the failure to find any way of properly joining the pyrimidine nucleobases — cytosine and uracil — to ribose (Fig. 1a).”
“But Powner et al. 2 revive the prospects of the 'RNA first' model by exploring a pathway for pyrimidine ribonucleotide synthesis in which the sugar and nucleobase emerge from a common precursor (Fig. 1b).”
“Superpositions of dipole states of base pairs consisting of purine (A, G) and pyrimidine (C, T) ring structures play the role of qubits, and quantum communication (coherence, entanglement, non-locality) occur in the "pi stack" region of the DNA molecule.”
“The recent finding of a gene fusion encoding three pyrimidine biosynthetic enzymes, shared only by Dictyostelium, fungi andMetazoa, indicates that the amoebozoa are a true sister group of the fungi and Metazoa.”
“To Simon and Cyclefree who hold such credulous views about evolution, I wonder if they have considered the origin of pyrimidine nucleotides, especially cytosine - has it really come from outer space as the wildest contemporary theories suggest?!”
On Thursday, the Legg report will be published along with...
Lists
These user-created lists contain the word ‘pyrimidine’.
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SCIE - EU nomenclature
All the scientific words found in the official EU nomenclature. For the screening I used Vocabgrabber of the Visual Thesaurus.
silicon, silica, shrimp, shelve, shallot, serine, seedling, septic, secretin, seaweed, screening, Scomber and 1171 more...
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IMCO - EU nomenclature
includes words of the "Prodcom list"
abaca, abdominal, abrasive, absorbent, absorber, accelerator, accessory, account book, accumulator, acebutolol, acetaldehyde, acetamide and 4515 more...
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I Can't Believe It's Not Listed
Words that, at the I put them here, weren't being listed by anyone else in the entire universe.
vagus, neoplanet, fadiddy, cazique, catastroika, circumciser, commonplace book, danseuse, ecopod, dichloroacetate, underlay, overlay and 374 more...
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Did Someone Say a Dinner Party?
It's a hazardous world out there...poison all around. I've tried not to include too many drugs (including medicines) and have ignored the fact that too much of anything can poison you. We're going ...
cyanide, botulinum, chlorine, mustard gas, hydrogen cyanide gas, mercury, arsenic, ricin, strychnine, aconite, acetic acid, acetone and 147 more...
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Genetics
allele, zygote, y chromosome, x linked disease, alloantigen, allopolyploid, z chromosome, x chromosome, mosaicism, allogeneic, allosome, hemizygous and 136 more...
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5-0
Hecko, words! I’m so happy I’ve found you. I want to keep you all and never want to lose you again. I hope you like it here.
amscray, thistledown, tine, tinsel, pungent, snarl, wail, lanky, viscid, dawdle, luminous, stow and 2719 more...
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