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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. 14 Dec. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Zoology. . Encyclopedia.com. (December 14, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-1

"pyrimidine." A Dictionary of Zoology. . Retrieved December 14, 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. 14 Dec. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Plant Sciences. . Encyclopedia.com. (December 14, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-0

"pyrimidine." A Dictionary of Plant Sciences. . Retrieved December 14, 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. 14 Dec. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Biology. . Encyclopedia.com. (December 14, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine-2

"pyrimidine." A Dictionary of Biology. . Retrieved December 14, 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. 14 Dec. 2017 <http://www.encyclopedia.com>.

"pyrimidine." The Columbia Encyclopedia, 6th ed.. . Encyclopedia.com. (December 14, 2017). http://www.encyclopedia.com/reference/encyclopedias-almanacs-transcripts-and-maps/pyrimidine

"pyrimidine." The Columbia Encyclopedia, 6th ed.. . Retrieved December 14, 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. 14 Dec. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Nursing. . Encyclopedia.com. (December 14, 2017). http://www.encyclopedia.com/caregiving/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine

"pyrimidine." A Dictionary of Nursing. . Retrieved December 14, 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. 14 Dec. 2017 <http://www.encyclopedia.com>.

"pyrimidine." A Dictionary of Ecology. . Encyclopedia.com. (December 14, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine

"pyrimidine." A Dictionary of Ecology. . Retrieved December 14, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/pyrimidine