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

For starters, if the rings are young, then most of Saturn’s icy moons may be as well—including geyser-spewing Enceladus, which hosts a big ocean of salty water beneath its frigid shell. Mike Wall, Scientific American, "Saturn’s Rings May Be Ancient After All," 17 Sep. 2019 Itinerary Itinerary Iceland is a country of extremes, where geysers and lava flows coexist with powerful waterfalls and calving glaciers. National Geographic, "Iceland Expedition: Land of Fire and Ice," 15 Sep. 2019 While those names weren’t overly familiar, the attractions in those towns were—namely hiking on a glacier, going to the blue lagoon, and visiting geysers and waterfalls. Judy Koutsky, Condé Nast Traveler, "A Disney Trip to Iceland Had All the Best Parts of Disney, and None of the Theme Parks," 2 Sep. 2019 The truck had knocked down two hydrants, causing enormous geysers and a widening pool of water across the road. Pauline Repard, San Diego Union-Tribune, "Semi-truck crash in Barrio Logan knocks out power to 4,200 utility customers," 9 Aug. 2019 And for the toddlers, there's an activity pool that's zero-entry with a pink frog slide, geysers and other interactive features. Natalia E. Contreras, Indianapolis Star, "Your guide to some of the best water parks and pools around Indianapolis," 17 July 2019 Sure, there are different kinds — big orgasms and little ones, short quakes and long, gushing geysers — but one kind of orgasm isn’t inherently better than the others. Anna Pulley,, "Ask Anna: I have to use a vibrator to have an orgasm during sex. Is that normal?," 26 Aug. 2019 Images on social media showed a geyser of water cascading over the roadway. Justin Wm. Moyer, Washington Post, "East-West Highway closed after water-main break," 8 Aug. 2019 The geyser is known to have erupted 56 times since then. USA TODAY, "Troll trail, coal train derailment, geyser record: News from around our 50 states," 27 June 2019

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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Statistics for geyser

Last Updated

2 Oct 2019

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Time Traveler for geyser

The first known use of geyser was in 1780

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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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More from Merriam-Webster on geyser

Rhyming Dictionary: Words that rhyme with geyser

Spanish Central: Translation of geyser

Nglish: Translation of geyser for Spanish Speakers Encyclopedia article about geyser

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