hydrothermal

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adjective

Of, or relating to hot water.

OriginEnglish thermal ← Ancient Greek ῠ̔δρο- (hŭdro-) ← Proto-Hellenic *údōr →
Less commonScrabble 24
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Meanings

adjectivehydrothermal (not comparable)
  1. not comparableOf, or relating to hot water.
  2. not comparablegeographyOf or relating to emanations of hot water that are rich in minerals, or to the rocks formed from them.

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. Englishthermal
  8. Englishhydrothermal

From hydro- + thermal.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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