hydropyrolysis

H4Y4D2R1O1P3Y4R1O1L1Y4S1I1S1

noun

Hydrogen pyrolysis: the thermal decomposition which takes place when organic compounds are heated to high temperatures in the presence of hydrogen. In some case, water may be used as the hydrogen source.

OriginEnglish pyrolysis ← Ancient Greek λῠ́σῐς (lŭ́sĭs) ← Proto-Indo-European *lewh₁- →
Scrabble 29
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Meanings

nounhydropyrolysis (plural hydropyrolyses)

plural hydropyrolyses

  1. Hydrogen pyrolysis: the thermal decomposition which takes place when organic compounds are heated to high temperatures in the presence of hydrogen. In some case, water may be used as the hydrogen source.

Origin

  1. Proto-Indo-European*wed-
  2. Proto-Indo-European*wódr̥
  3. Proto-Hellenic*údōr
  4. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  5. Ancient Greekῠ̔δρο- (hŭdro-)
  6. Englishhydro-
  7. Proto-Indo-European*péh₂wr̥
  8. Proto-Hellenic*pāwər
  9. Ancient Greekπῦρ (pûr)
  10. Latinpyr
  11. Englishpyro-
  12. Proto-Indo-European*lewh₁-
  13. Ancient Greekλύω (lúō)
  14. Ancient Greekλῠ́σῐς (lŭ́sĭs)
  15. Englishpyrolysis
  16. Englishhydropyrolysis

From hydro- + pyrolysis.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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