hydrogenolysis

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noun

the cleavage of a molecule, especially that of a carbon-carbon bond, with the addition of hydrogen atoms to the fragments

OriginAncient Greek λῠ́σῐς (lŭ́sĭs) ← Proto-Indo-European *lewh₁- ← English hydrogen →
Scrabble 25
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Meanings

nounhydrogenolysis (countable and uncountable, plural hydrogenolyses)

plural hydrogenolyses

  1. countableuncountablechemistrythe cleavage of a molecule, especially that of a carbon-carbon bond, with the addition of hydrogen atoms to the fragments

Origin

  1. Proto-Indo-European*wed-
  2. Proto-Indo-European*wódr̥
  3. Proto-Hellenic*údōr
  4. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  5. Ancient Greekὑδρο- (hudro-)
  6. Frenchhydro-
  7. Proto-Indo-European*ǵenh₁-
  8. Proto-Indo-European*ǵénh₁os
  9. Proto-Hellenic*génos
  10. Ancient Greekγένος (génos)
  11. Frenchhydrogène
  12. Englishhydrogen
  13. Proto-Indo-European*lewh₁-
  14. Ancient Greekλύω (lúō)
  15. Ancient Greekλῠ́σῐς (lŭ́sĭs)
  16. Englishhydrogenolysis

From hydrogen + -o- + -lysis.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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