- a colorless, crystalline organic compound, CHN, the parent substance of the uric-acid group of compounds
- any of several basic substances produced by the decomposition of nucleoproteins and having a purine-type molecule, as caffeine, adenine, or guanine
Origin of purineGerman purin from Classical Latin purus, pure + Modern Latin uricum, uric acid + -in, -ine
- A double-ringed, crystalline organic base, C5H4N4, that is the parent compound of a large group of biologically important compounds.
- Any of a group of substituted derivatives of purine, including the nitrogen bases adenine and guanine, which are components of nucleic acids. Uric acid, caffeine, theobromine, and theophylline are also purines.
Origin of purineGerman Purin blend of Latin pūrus clean ; see pure. and New Latin ūricus uric ( from Greek ouron urine ) -in -in, -ine