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

• reverencing
• reverend
• Reverend Mother
• reverends
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• reverential
• reverentially
• reverently
• reverer
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• reveries
• revering
• reverist
• reverists
• revers
• reversal
• reversal colour film
• reversals
• reverse
• reversed
• reversed discrimination
• reverse discrimination
• reversedly