hot spring

American  

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.

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hot spring British  

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

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hot spring Scientific  

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

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Etymology

Origin of hot spring

First recorded in 1660–70

Example Sentences

Proteins found in places such as hot springs or deep ocean vents are particularly promising because they naturally function in harsh environments.

From Science Daily

Japanese macaques, better known as snow monkeys, are famous for sitting in steaming hot springs when temperatures drop.

From Science Daily

Bacteria are remarkably adaptable, thriving in some of the harshest places on Earth, from boiling hot springs to deep freezes far below zero.

From Science Daily

While visitors once flocked to the town to enjoy its hot springs, the eruption of Mount Usu in 1977 brought tourism in the area to an abrupt halt.

From Barron's

The air began to reek of sulfur, the rotten-egg smell reminding them of Yellowstone National Park or hot springs around Sue’s hometown in Wyoming.

From Literature