Definitions for pyrrolepɪˈroʊl, ˈpɪr oʊl

This page provides all possible meanings and translations of the word pyrrole

Random House Webster's College Dictionary

pyr•rolepɪˈroʊl, ˈpɪr oʊl(n.)

  1. a colorless, toxic, liquid, five-membered ring compound, C4H5N, that is a component of chlorophyll and hemin.

    Category: Chemistry

Origin of pyrrole:

1825–35; < Gk pyrr(hós) red

pyr•rol•icpɪˈrɒl ɪk, -ˈroʊ lɪk(adj.)


  1. pyrrole(Noun)

    Any of a class of aromatic heterocyclic compounds containing a ring of four carbon atoms and a nitrogen atom; especially the simplest one, CHN.


  1. Pyrrole

    Pyrrole is a heterocyclic aromatic organic compound, a five-membered ring with the formula C4H4NH. It is a colourless volatile liquid that darkens readily upon exposure to air. Substituted derivatives are also called pyrroles, e.g., N-methylpyrrole, C4H4NCH3. Porphobilinogen, a trisubstituted pyrrole, is the biosynthetic precursor to many natural products such as heme. Pyrroles are components of more complex macrocycles, including the porphyrins of heme, the chlorins, bacteriochlorins, chlorophyll, porphyrinogens.


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