Purine Definition
 pyo͝orēn 
    noun
  
 A colorless, crystalline organic compound, C5H4N4, the parent substance of the uric-acid group of compounds.
 Webster's New World 
Any of several basic substances produced by the decomposition of nucleoproteins and having a purine-type molecule, as caffeine, adenine, or guanine.
 Webster's New World 
Other Word Forms of Purine
Noun
Singular:
 purinePlural:
 purinesOrigin of Purine
-  German Purin blend of Latin pūrus clean pure and New Latin ūricus uric (from Greek ouron urine) -in -in, -ine From American Heritage Dictionary of the English Language, 5th Edition 
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