'Hydrothermal' definitions:

Definition of 'Hydrothermal'

From: GCIDE
  • Hydrothermal \Hy`dro*ther"mal\, a. [Hydro-, 1 + thermal.]
  • 1. 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. [1913 Webster]
  • 2. of, pertaining to, or using the hot waters or steam found at special locations within the earth's crust; as, hydrothermal power generation. [PJC]