thiolactam

T1H4I1O1L1A1C3T1A1M3

noun

Any compound formally derived from a lactam by replacing the oxygen atom with sulfur; a cyclic thioamide

OriginEnglish lactam ← Proto-Indo-European *dʰeh₁- ← Latin ammoniacus →
Scrabble 17
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Meanings

nounthiolactam (plural thiolactams)

plural thiolactams

  1. chemistryAny compound formally derived from a lactam by replacing the oxygen atom with sulfur; a cyclic thioamide

Origin

  1. Proto-Indo-European*dʰewh₂-der.?
  2. Ancient Greekθέειον (théeion)
  3. Ancient Greekθεῖον (theîon)
  4. Englishthio-
  5. Latinlac
  6. Englishlacto-
  7. GermanKeton
  8. Englishketone
  9. Englishlac(tone)
  10. Egyptianjmn
  11. Ancient GreekᾸ̓́μμων (Ắmmōn)
  12. LatinAmmōn
  13. Latinammoniacus
  14. Englishammonia
  15. Proto-Indo-European*dʰeh₁-
  16. Englisham(ide)
  17. Englishlactam
  18. Englishthiolactam

From thio- + lactam.

Full word history & related roots →
Cite this entry
APA

thiolactam. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/thiolactam

MLA

“thiolactam.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/thiolactam. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “thiolactam,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/thiolactam.

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