GNU Collaborative International Dictionary of English

last match results

Found one definition

1.       
   Hydrothermal (?), 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]