1. 
   Pyrrol
   Pyr'rol noun [ Greek ... flame-colored (from ... fire) + Latin ol eum oil.] (Chemistry) A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C_...
   Found op http://www.encyclo.co.uk/webster/P/205
   
   
2. 
   pyrrol
   <chemistry> A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colourless liquid, C4H5N, having on odour like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it c...
   Found op http://www.mondofacto.com/facts/dictionary?pyrrol
   
   
3. 
   Pyrrol
   • (n.) A nitrogenous base found in coal tar, bone oil, and other distillates of organic substances, and also produced synthetically as a colorless liquid, C4H5N, having on odor like that of chloroform. It is the nucleus and origin of a large number of derivatives. So called because it colors a ...
   Found op http://thinkexist.com/dictionary/meaning/pyrrol/
   
   

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