semialdehyde

S1E1M3I1A1L1D2E1H4Y4D2E1

noun

The monoaldehyde of a dicarboxylic acid; those of some amino acids are intermediates in biosynthesis

OriginEnglish aldehyde ← German Aldehyd ← Ancient Greek ῠ̔δρο- (hŭdro-) →
UncommonScrabble 22
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Meanings

nounsemialdehyde (plural semialdehydes)

plural semialdehydes

  1. chemistryThe monoaldehyde of a dicarboxylic acid; those of some amino acids are intermediates in biosynthesis

Origin

  1. Proto-Indo-European*sem-
  2. Proto-Indo-European*sēmi
  3. Latinsēmi-
  4. Englishsemi-
  5. Akkadian𒎎𒋆𒁉𒍣𒁕 (guḫlum)
  6. Aramaicכוחלא (kuḥlā)
  7. Arabicكُحْل (kuḥl)
  8. Andalusian Arabicكُحُول (kuḥūl)
  9. Latinalcohol
  10. Proto-Indo-European*de
  11. Proto-Indo-European*déh₁
  12. Proto-Italic*dē
  13. Latindē
  14. Latinde-
  15. Proto-Indo-European*wed-
  16. Proto-Indo-European*wódr̥
  17. Proto-Hellenic*údōr
  18. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  19. Ancient Greekῠ̔δρο- (hŭdro-)
  20. GermanAldehyd
  21. Englishaldehyde
  22. Englishsemialdehyde

From semi- + aldehyde.

Full word history & related roots →
Cite this entry
APA

semialdehyde. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/semialdehyde

MLA

“semialdehyde.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/semialdehyde. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “semialdehyde,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/semialdehyde.

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