hydrothermal

Adjective

hy=dro=ther=mal

CIDE DICTIONARY

hydrothermal, a. [Hydro-, 1 + thermal.].

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]
of, pertaining to, or using the hot waters or steam found at special locations within the earth's crust; as, hydrothermal power generation. [PJC]

hydrothermal, adj. of the action of heated water on the earth's crust.

Derivative

hydrothermally adv.

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