pyrimidine[pə rim′ə dēn′, pī-; pir′ə mə dēn′]
- a colorless, liquid, crystalline organic compound, CHN, the fundamental form of a group of bases, some of which are constituents of nucleic acid
- any of several basic substances produced by the decomposition of nucleoproteins and having a pyrimidine-type molecule, as thymine, cytosine, or uracil
Origin: Ger pyrimidin from pyridin: see pyridine
Used by arrangement with John Wiley & Sons, Inc.
- A single-ringed, crystalline organic base, C4H4N2, that forms uracil, cytosine, or thymine and is the parent compound of many drugs, including the barbiturates.
- Any of several organic compounds derived from or structurally related to pyrimidine, especially the nitrogen bases uracil, cytosine, and thymine.
Origin: Alteration of pyridine.
pyrimidine - Medical Definition
- A crystalline organic base that is the parent substance of various biologically important derivatives.
- Any of several basic compounds derived from or structurally related to pyrimidine, especially the nucleic acid constituents uracil, cytosine, and thymine.
pyrimidine - Science Definition
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