Definition of pyrrole in English:

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Pronunciation: /ˈpirōl/


A weakly basic sweet-smelling liquid compound present in bone oil and coal tar.
Example sentences
  • This step is followed by polymerising pyrrole vapours to produce a foam composite.
  • The free-base form of such porphyrins contains two pyrrole nitrogens.
  • The Netropsin ligand consists of a guanidinium, two pyrrole, and a propylamidinium part.


Mid 19th century: from Greek purrhos 'reddish' + Latin oleum 'oil'.

For editors and proofreaders

Syllabification: pyr·role

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