spirolactam

S1P3I1R1O1L1A1C3T1A1M3

noun

Any spiro compound containing a bridged lactam group

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

nounspirolactam (plural spirolactams)

plural spirolactams

  1. chemistryAny spiro compound containing a bridged lactam group

Origin

  1. Proto-Indo-European*sper-
  2. Proto-Indo-European*sper-yeh₂-
  3. Ancient Greekσπεῖρα (speîra)
  4. Latinspīra
  5. Englishspiro-
  6. Latinlac
  7. Englishlacto-
  8. GermanKeton
  9. Englishketone
  10. Englishlac(tone)
  11. Egyptianjmn
  12. Ancient GreekᾸ̓́μμων (Ắmmōn)
  13. LatinAmmōn
  14. Latinammoniacus
  15. Englishammonia
  16. Proto-Indo-European*dʰeh₁-
  17. Englisham(ide)
  18. Englishlactam
  19. Englishspirolactam

From spiro- + lactam.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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