hydrothermal

adjective

hy·​dro·​ther·​mal ˌhī-drə-ˈthər-məl 

: of or relating to hot water

—used especially of the formation of minerals by hot solutions rising from a cooling magma

hydrothermally

ˌhī-drə-ˈthər-mə-lē 

adverb

Examples of hydrothermal in a Sentence

Recent Examples on the Web

Circ’s hydrothermal recycling process is designed to separate polyester and cellulose in blended textiles without sacrificing either component. — Alexandra Harrell, Footwear News, 26 Aug. 2026

In addition to the massage rooms, yoga pavilion, and infinity pool, there will be a hydrothermal center with a hammam, infrared sauna, and sensory-deprivation hut. — Mark Johansen, Travel + Leisure, 16 Aug. 2026

Toxic gases may accumulate to dangerous levels in some hydrothermal areas. — Eve Chen, USA Today, 21 July 2026

Conventional methods for converting biomass into solid fuel, such as hydrothermal carbonization and torrefaction, can take anywhere from 30 minutes to six hours. — New Atlas, 1 July 2026

Word History

Etymology

International Scientific Vocabulary

First Known Use

1849, in the meaning defined above

Phrases Containing hydrothermal

• hydrothermal vent

Rhymes for hydrothermal

• ectodermal
• endodermal
• epidermal
• epithermal
• geothermal
• intradermal
• isothermal
• mesodermal
• photothermal
• dermal
• thermal
• electrothermal

Medical Definition

hydrothermal

adjective

hy·​dro·​ther·​mal ˌhī-drə-ˈthər-məl 

: of or relating to hot water

hydrothermally

-mə-lē 

adverb