Meaning & use
hydrothermal
Relating to hot water, especially processes involving heated water within or near the Earth's crust.
See it in a sentence
Hydrothermal vents on the ocean floor support unusual ecosystems that thrive without sunlight.
Hydrothermal activity beneath the region produces the area's natural hot springs.
A note on using this word
Hydrothermal processes are also responsible for forming certain mineral deposits underground.
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