Definition of geyser in English:

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Pronunciation: /ˈɡiːzə/
Pronunciation: /ˈɡʌɪzə/


1A hot spring in which water intermittently boils, sending a tall column of water and steam into the air.
Example sentences
  • Precious metals are commonly precipitated with the siliceous sinters that form around hot springs and geysers.
  • Rainwater in volcanic areas can descend as far as several kilometres into the crust, later rising to the surface in hot springs or geysers.
  • Specialized microorganisms called extremophiles thrive in nuclear waste, volcanic vents, boiling geothermal geysers and even deep inside rocks.
1.1A jet or stream of liquid: the pipe sent up a geyser of sewer water into the street
More example sentences
  • The center of the platform began to open like an iris and a geyser of flame spewed forth, engulfing its first breath of air.
  • A geyser of lava spouted between them and Seth attacked, charging through the lava like it was water, an unstoppable locomotive of power.
  • This second album erupts like a geyser of molten lava from your speakers.
2ˈɡiːzə British A gas-fired water heater through which water flows as it is rapidly heated.
Example sentences
  • People who want to have a well-equipped bathroom can look for instant geysers and water heaters, designer taps and other bathroom needs here.
2.1South African A hot-water storage tank with an electric heating element.
Example sentences
  • The geyser, which is said to be one of the highest contributors of high electrical bills, is only switched on in the morning.
  • Exacerbating these problems is the issue of individual geysers and water meters, allowing tenants to be individually billed for their consumption.
  • I heard of one absentee apartment, where a faulty geyser ran water for 6 months before being noticed.


[no object, with adverbial of direction]
(Especially of water or steam) gush or burst out with great force: a fissure opened and yellow smoke geysered upward
More example sentences
  • Shouts and yells and crashes filled the air, ten times louder than in the hall, and it was difficult to see some places because of all the hissing steam, geysering up from spouts and funnels and pots.


Late 18th century: from Icelandic Geysir, the name of a particular spring in Iceland; related to geysa 'to gush'.

Words that rhyme with geyser

appeaser, Caesar, easer, Ebenezer, El Giza, freezer, geezer, Louisa, Pisa, seizer, squeezer, teaser, Teresa, Theresa, visa, wheezer

For editors and proofreaders

Line breaks: gey¦ser

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