Hydrothermal
Pronunciation : Hy`dro*ther"mal
Part of Speech : a.
Etymology : [Hydro-, 1 + thermal.]
Definition : Defn: Of or pertaining to hot water; -- used esp. with reference to the action of heated waters in dissolving, redepositing, and otherwise producing mineral changes within the crust of the globe.
Source : Webster's Unabridged Dictionary, 1913