- 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, not known to occur naturally, from which is derived the nitrogen bases adenine and guanine, as well as uric acid as a metabolic end product.
- Any of a group of organic compounds structurally related to purine, particularly adenine and guanine, and also caffeine, uric acid, theobromine, and theophylline.
Origin of purineGerman Purin : blend of Latin p&umacron;rus, clean; see pure, and New Latin &umacron;ricus, uric (from Greek ouron, urine) + -in, -in, -ine.