purine /pūrˈin or pūrˈēn/ or purin /pūˈrin/

1. A cyclic double-ring crystalline substance C₅H₄N₄, which with oxygen forms uric acid (C₅H₄N₄O₃), and with many derivatives
2. Any of a number of these derivatives, cyclic diureides, such as adenine and guanine, esp one which is part of the nucleotide chains of DNA and RNA

• druse
• Druse
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• Drusian
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• drusiest
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• drusy cavity
• druthers
• druxier
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• druxy
• Druz
• Druze
• DRV
• dry
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• Dryasdust
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• drybeat