1. relating to or produced by hot water, especially water heated by geothermal energy beneath the Earth's surface
Usage: commonly used in geology and earth science contexts
2. of or relating to the therapeutic use of hot water or steam for medical treatment
Usage: medical/wellness context

Examples

• Hydrothermal vents on the ocean floor release superheated water rich in minerals.
• Scientists study hydrothermal systems to understand how life can survive in extreme environments.
• The region is known for its hydrothermal springs, which attract visitors seeking natural hot baths.
• Hydrothermal deposits often contain valuable ore minerals formed by hot water circulation.
• The spa offers hydrothermal treatments using naturally heated mineral water.
• Hydrothermal activity in Iceland provides renewable energy for the country.