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purgative
purgatorial
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purge
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purificator
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Purim
purine
purism
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Puritan
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purine

pu·rine [ pyr n, pyrin ] (plural pu·rines)


noun 
Definition:
 
1. crystalline solid: a nitrogen-containing substance derived from uric acid that is the precursor of several biologically important compounds. C5H4N4

2. derivative found in RNA and DNA: a derivative of purine, especially either of the bases adenine and guanine, which are found in RNA and DNA

[Late 19th century. < German Purin< blend of Latin purus "pure" + modern Latin uricum "uric acid"]
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