- 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 of pyrimidineGerman pyrimidin ; from pyridin: see pyridine
- 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 of pyrimidineAlteration of pyridine.