gey·​ser | \ ˈgī-zər How to pronounce geyser (audio) , British also ˈgē-zə, for sense 1 and usually ˈgē-zə for sense 2 \

Definition of geyser

1 : a spring that throws forth intermittent jets of heated water and steam
2 British : an apparatus for heating water rapidly with a gas flame (as for a bath)

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Did You Know?

A hot spring that discharges intermittent jets of steam and water is called a geyser. Geysers are generally associated with recent volcanic activity. They are produced by the heating of underground waters that have come into contact with, or are very close to, magma. Geyser discharges as high as 1,600 ft (500 m) have been recorded, but 160 ft (50 m) is much more common. Occasionally, a geyser will adopt an extremely regular and predictable pattern of intermittent activity and discharge for a few minutes every hour or so (for example, Old Faithful in Yellowstone National Park).

Examples of geyser in a Sentence

The water from the geyser rises as high as 75 feet. geysers rising as high as 75 feet The water shot into the sky in an enormous geyser.
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Recent Examples on the Web Trump has effectively managed to turn off the regulatory spigot, such that the flow of new regulations has slowed from a geyser to a drip. James Broughel, National Review, "How Regulatory Reform Can Help Drive the Economic Recovery," 15 Sep. 2020 Yes, pay the geyser a visit, but then remember to keep going. Stacey Leasca, Travel + Leisure, "These Are the Most Instagrammed National Parks in the World," 7 Sep. 2020 At the intersection of Second and Sixth Streets in downtown Minneapolis, rushing water tears a manhole cover off, and a geyser of water shoots 20 feet in the air. Paul Douglas, Star Tribune, "It'll be balmy into Saturday — but the first frost hits Up North next week," 1 Sep. 2020 After a slumber that stretched for more than six years, a geyser at Yellowstone National Park erupted once again last week. Fox News, "Yellowstone's Giantess Geyser erupts for first time in 6 years, roars 'back to life'," 30 Aug. 2020 But then, as the day got hotter and the fumes expanded, the pressure caused a tiny geyser of fuel to spray out. Bradley Ford, Popular Mechanics, "Your Gas Can Sucks. Here's How to Make It Better.," 28 Aug. 2020 Singing similarly puts force behind the excretion, shooting it out like a geyser. James Hamblin, The Atlantic, "Paging Dr. Hamblin: Can We Sing?," 10 June 2020 And yet, Facebook Marketplace is a digital utopia compared with the geyser of untreated sewage that is Craigslist. Ezra Dyer, Car and Driver, "One 1990 Mercedes-Benz 300SE, and Much More Hassle: Adventures in Used Car Sales," 7 June 2020 There are natural wonders that will leave them in awe: think volcanoes, glaciers, ice caves, thundering waterfalls, hot springs and geysers. Erica Lamberg, USA TODAY, "These family-friendly destinations are opening soon and exciting enough to keep teens off their phones," 27 May 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'geyser.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of geyser

1780, in the meaning defined at sense 1

History and Etymology for geyser

Icelandic Geysir, hot spring in Iceland, from geysa to rush forth, from Old Norse; akin to Old English gēotan to pour — more at found

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Time Traveler for geyser

Time Traveler

The first known use of geyser was in 1780

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Statistics for geyser

Last Updated

19 Sep 2020

Cite this Entry

“Geyser.” Dictionary, Merriam-Webster, Accessed 19 Sep. 2020.

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More Definitions for geyser


How to pronounce geyser (audio)

English Language Learners Definition of geyser

: a hole in the ground that shoots out hot water and steam also : the column of water and steam that comes from a geyser
British : a device for heating water in a bathroom or kitchen


gey·​ser | \ ˈgī-zər How to pronounce geyser (audio) \

Kids Definition of geyser

: a spring that now and then shoots up hot water and steam

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