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

• cloggier
• cloggiest
• clogginess
• clogginesses
• clogging
• cloggy
• clogs
• cloison
• cloisonnage
• cloisonnages
• cloisonné
• cloisonnés
• cloisons
• cloister
• cloistered
• cloisterer
• cloisterers
• cloister-garth
• cloister-garths
• cloistering
• cloisters
• cloistral
• cloistress
• cloistresses
• cloke