Word.ws English Dictionary

pyrrole

/ˈpɪɹəʊl/

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, C₄H₅N.

Noun

pyrrole (plural pyrroles)

  1. Any of a class of aromatic heterocyclic compounds containing a ring of four carbon atoms and a nitrogen atom; especially the simplest one, C₄H₅N.
    • The way the red crystals absorbed light suggested that the molecule might contain a porphyrin-like structure, a flat ring made up of four smaller rings called pyrroles […].1998, Georgina Ferry, Dorothy Hodgkin: A Life
    Synonyms:
    azole

Synonyms of pyrrole

Forms of pyrrole

pluralpyrroles

Origin of pyrrole

From German Pyrrol, corresponding to Ancient Greek πυρρός (purrhós, “reddish, fiery”) + -ole.

Words formed from pyrrole

Questions about pyrrole

What does pyrrole mean?
Pyrrole means any of a class of aromatic heterocyclic compounds containing a ring of four carbon atoms and a nitrogen atom; especially the simplest one, C₄H₅N.
What part of speech is pyrrole?
Pyrrole is a noun.
How do you pronounce pyrrole?
Pyrrole is pronounced /ˈpɪɹəʊl/ (UK).
What is the plural of pyrrole?
The plural of pyrrole is pyrroles.

Words near pyrrole in the dictionary

  1. pyrrocaine
  2. pyrrocidine
  3. pyrroindomycin
  4. pyrroindomycins
  5. pyrrol
  6. pyrrole
  7. pyrroles
  8. pyrrolic
  9. pyrrolide
  10. pyrrolides
  11. pyrrolidine

Source and license

Adapted from Wiktionary: pyrrole (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-pyrrole.wav.

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