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

• make the grade
• make the most of
• make the mouth water
• make the pace
• make the rounds
• make the running
• make things hum
• make tick
• make time
• make tracks
• make tracks for
• makeunder
• make unready
• make up
• make-up
• make up leeway
• make up one's mind
• make-ups
• make up to
• make use of
• make war
• make water
• make waves
• make way
• make-weight