Pyrimidine meaning

pī-rĭmĭ-dēn, pĭ-
A single-ringed, crystalline organic base, C4 H4 N2 , that forms uracil, cytosine, or thymine and is the parent compound of many drugs, including the barbiturates.
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Any of several organic compounds derived from or structurally related to pyrimidine, especially the nitrogen bases uracil, cytosine, and thymine.
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A colorless, liquid, crystalline organic compound, C4H4N2, the fundamental form of a group of bases, some of which are constituents of nucleic acid.
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Any of several basic substances produced by the decomposition of nucleoproteins and having a pyrimidine-type molecule, as thymine, cytosine, or uracil.
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A single-ringed, crystalline organic base, C4 H4 N2 , that is the parent compound of a large group of biologically important compounds.
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Any of a group of substituted derivatives of pyrimidine, including the nitrogen bases uracil, cytosine, and thymine, which are components of nucleic acids. Barbiturates and certain other drugs are also pyrimidines.
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Any of a group of organic compounds having a single six-member ring in which the first and third atoms are nitrogen and the rest are carbon. Pyrimidines include the bases cytosine, thymine, and uracil, which are components of DNA and RNA. Pyrimidine rings are also components of several larger compounds, such as thiamine and some synthetic barbiturates.
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(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.
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Origin of pyrimidine

  • Alteration of pyridine

    From American Heritage Dictionary of the English Language, 5th Edition