from The Century Dictionary and Cyclopedia
- Pertaining to or derived from alloxan and uric acid: noting certain bases comprising xanthin, hypoxanthin, episarcin, heteroxanthin, paraxanthin, theophyllin, theobromine, cafein, guanine, epiguanine, adenin, and carnin. They are all nuclear derivatives. Also termed xanthin bases or purin bases.
Sorry, no etymologies found.