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

• sarneys
• sarnie
• sarnies
• sarod
• sarods
• sarong
• sarongs
• saronic
• saros
• saroses
• sarpanch
• sarpanches
• sarracenia
• Sarraceniaceae
• sarraceniaceous
• sarracenias
• sarrasin
• sarrasins
• sarrazin
• sarrazins
• sarrusophone
• sarrusophones
• sars
• SARS
• sarsaparilla