dihydro

D2I1H4Y4D2R1O1

noun

Two hydrogen atoms in a molecule

OriginEnglish hydro- ← Ancient Greek ῠ̔δρο- (hŭdro-) ← Proto-Hellenic *údōr →
UncommonScrabble 15
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Meanings

noundihydro (uncountable)
  1. especiallyin compoundsuncountablechemistryTwo hydrogen atoms in a molecule

Origin

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Hellenic*dwi-
  4. Ancient Greekδῐ- (dĭ-)
  5. Latindi-
  6. Englishdi-
  7. Proto-Indo-European*wed-
  8. Proto-Indo-European*wódr̥
  9. Proto-Hellenic*údōr
  10. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  11. Ancient Greekῠ̔δρο- (hŭdro-)
  12. Englishhydro-
  13. Englishdihydro

From di- + hydro-.

Full word history & related roots →

Rhymes & wordplay

Anagrams

hydroidhydrido
Cite this entry
APA

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

MLA

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

Chicago

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

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