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)

Keep scrolling for more

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.
See More

Recent Examples on the Web

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 Old Faithful Inn, located near the iconic geyser of the same name, has a Christmas celebration every August 25. Douglas Main, National Geographic, "It’s snowing in Yellowstone—on the first day of summer.," 21 June 2019 The RoboSimian, for example, is designed to explore the silty, icy world of Saturn's moon Enceladus, where geysers could burst through the frozen surface at any time. David Grossman, Popular Mechanics, "NASA Is Building a Family of Cliff-Climbing Robots," 11 July 2019 Machine gun bullets whipped across and ripped small geysers in the water. Washington Post, "AP Was There: D-Day correspondent returns 10 years later," 4 June 2019 One upshot of the uprising though has been the geyser of colorful and vibrant artwork that has dominated both the streets and Sudanese social media. Abdi Latif Dahir, Quartz Africa, "Sudan’s street protests have inspired another revolution—in art," 12 July 2019 The idea was to swoop low and check for elements of life by analyzing particles of ice, water, and rock that may be spewing out from the moon’s surface like the spray of a geyser. Eric Niiler, WIRED, "Forget the Moon—We Should Go to Jupiter’s Idyllic Europa," 5 July 2019 But there is no clear correlation between the geyser's eruptions and earthquake activity, according to the National Park Service. Harmeet Kaur, CNN, "The Steamboat Geyser in Yellowstone National Park is approaching a record number of eruptions," 4 July 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.

See More

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

Keep scrolling for more

Learn More about geyser

Dictionary Entries near geyser








Statistics for geyser

Last Updated

4 Sep 2019

Look-up Popularity

Time Traveler for geyser

The first known use of geyser was in 1780

See more words from the same year

Keep scrolling for more

More Definitions for geyser



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

Keep scrolling for more

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

Comments on geyser

What made you want to look up geyser? Please tell us where you read or heard it (including the quote, if possible).


readily or continually undergoing change

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Add Diction

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!