hot spring

noun

1. a thermal spring having water warmer than 98°F (37°C): the water is usually heated by emanation from or passage near hot or molten rock.

hot spring

noun

1. Also called: thermal spring. a natural spring of mineral water at a temperature of 21°C (70°F) or above, found in areas of volcanic activity

hot spring

1. A spring of warm water, usually having a temperature greater than that of the human body.

Word History and Origins

Origin of hot spring¹

First recorded in 1660–70