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

• leave someone to her own devices
• leave someone to his own devices
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• leave the door open
• leave the room
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• leave well alone
• leavier
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• leaving
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• Leavisite
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• lecanora
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• leccy
• lech