pyrrole
Fetched 2026-10-26 (cache).
Related words from Datamuse; suggestions, not definitions.
Noun
- {{lb|en|organic compound}} Any of a class of [[aromatic]] [[heterocyclic]] [[compound]]s containing a ring of four [[carbon]] atoms and a [[nitrogen]] atom; especially the simplest one, C<sub>4</sub>H<sub>5</sub>N. {{defdate|from 19th c.}}
Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.