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

• reducing agents
• reducing flame
• reducing flames
• reductant
• reductants
• reductase
• reductases
• Reductil
• reductio ad absurdum
• reduction
• reduction division
• reduction divisions
• reductionism
• reductionisms
• reductionist
• reductionistic
• reductionists
• reductions
• reduction works
• reductive
• reductively
• reductiveness
• reductivenesses
• negroism
• negroisms