pyrrolidone

P3Y4R1R1O1L1I1D2O1N1E1
/ˈpɪɹəlɪˌdəʊn/

noun

any of a class of heterocyclic ketones derived from a pyrrolidine; especially 2-pyrrolidone, the simplest γ-lactam

OriginEnglish ketone ← German Keton ← Ancient Greek πῠρρός (pŭrrhós) →
UncommonScrabble 17
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Meanings

nounpyrrolidone (plural pyrrolidones)

plural pyrrolidones

  1. chemistryany of a class of heterocyclic ketones derived from a pyrrolidine; especially 2-pyrrolidone, the simplest γ-lactam

Origin

  1. Proto-Indo-European*péh₂wr̥
  2. Proto-Hellenic*pāwər
  3. Ancient Greekπῦρ (pûr)
  4. Ancient Greekπῠρρός (pŭrrhós)
  5. GermanPyrro
  6. Englishpyrrole
  7. Englishpyrrolidine
  8. GermanKeton
  9. Englishketone
  10. Englishpyrrolidone

From pyrrolidine + -one.

Full word history & related roots →

Translations

Finnish pyrrolidoni
  • pyrrolidoniTranslations
Cite this entry
APA

pyrrolidone. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/pyrrolidone

MLA

“pyrrolidone.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pyrrolidone. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “pyrrolidone,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/pyrrolidone.

Source: pyrrolidone on Wiktionary, CC BY-SA 4.0.