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pyrimidine

pyrimidine A basic, six-membered, heterocyclic compound; the principal pyrimidines (uracil, thymine, and cytosine) are important constituents of nucleic acids. Thiamine (vitamin B1) is an important pyrimidine derivative, and other derivatives play major roles in carbohydrate and lipid metabolism.

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"pyrimidine." A Dictionary of Zoology. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Zoology. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-1

"pyrimidine." A Dictionary of Zoology. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-1

pyrimidine

pyrimidine A basic, 6-membered heterocyclic compound. The principal pyrimidines (uracil, thymine, and cytosine) are important constituents of nucleic acids. Thiamine (vitamin B1) is an important pyrimidine derivative, and other derivatives play major roles in carbohydrate and lipid metabolism.

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"pyrimidine." A Dictionary of Plant Sciences. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Plant Sciences. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-0

"pyrimidine." A Dictionary of Plant Sciences. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-0

pyrimidine

pyrimidine An organic nitrogenous base (see formula), sparingly soluble in water, that gives rise to a group of biologically important derivatives, notably uracil, thymine, and cytosine, which occur in nucleotides and nucleic acids (DNA and RNA).

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"pyrimidine." A Dictionary of Biology. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Biology. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-2

"pyrimidine." A Dictionary of Biology. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-2

pyrimidine

pyrimidine (pīrĬm´Ĭdēn´), type of organic base found in certain coenzymes and in the nucleic acids of plant and animal tissue. The three major pyrimidines of almost universal distribution in living systems are cytosine, thymine, and uracil.

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"pyrimidine." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"pyrimidine." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/pyrimidine

"pyrimidine." The Columbia Encyclopedia, 6th ed.. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/pyrimidine

pyrimidine

pyrimidine (pi-rim-i-deen) n. a nitrogen-containing compound with a ring molecular structure. The commonest pyrimidines are cytosine, thymine, and uracil, which form the nucleotides of nucleic acids.

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"pyrimidine." A Dictionary of Nursing. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Nursing. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine

"pyrimidine." A Dictionary of Nursing. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine

pyrimidine

pyrimidine A nitrogen base composed of a single, six-membered ring structure. The pyrimidine bases in the nucleotides of nucleic acids are cytosine and thymine in DNA and cytosine and uracil in RNA.

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"pyrimidine." A Dictionary of Ecology. . Encyclopedia.com. 18 Aug. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Ecology. . Encyclopedia.com. (August 18, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine

"pyrimidine." A Dictionary of Ecology. . Retrieved August 18, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine