hot spring(redirected from Hydrothermal springs)
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A natural spring producing warm water, usually at a temperature above that of the human body.
(Physical Geography) a natural spring of mineral water at a temperature of 21°C (70°F) or above, found in areas of volcanic activity. Also called: thermal spring
a thermal spring having water warmer than 98°F (37°C).
A spring of warm water, usually having a temperature greater than that of the human body.