Definition of geyser in English:



  • 1A hot spring in which water intermittently boils, sending a tall column of water and steam into the air.

    • ‘These were probably caused by volcanic eruptions or geysers.’
    • ‘In fact 80 per cent of the country's electricity is generated from the natural heat of hot springs, geysers and volcanoes, which means very little pollution of any kind.’
    • ‘Although no eruptions have been recorded at Yellowstone for 70,000 years, the hot springs, spectacular geysers, and bubbling mud pools provide testimony that hot magma still resides not far beneath the surface.’
    • ‘At this series of erupting geysers in the north of the island, boiling water is expelled from the magma at the earth's core.’
    • ‘It is full of craters - it has thirty active volcanoes - hot springs, and geysers.’
    • ‘Gray hematite more quietly occupies the rims of hot springs and geysers where its presence often goes unnoticed.’
    • ‘The teenagers will visit many of Iceland's unique features, including geysers, volcanoes and geothermal hotspots.’
    • ‘So, hot springs are geysers on the sea floor, chemical rich environments.’
    • ‘At times, the spring flows continuously; at other times it acts as a small geyser issuing a jet up to 70 cm in the air.’
    • ‘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.’
    • ‘Hot geysers and volcanic eruptions show this effect.’
    • ‘It is a startlingly brutal place where boiling geysers burst through mountain plains caked in salt, and jagged red rocks give way to massive sand dunes and desolate open salt flats.’
    • ‘‘It's one of the most spectacular tall geysers in the world,’ he says.’
    • ‘New Zealand's geographical features vary from the Southern Alps and fjords on South Island to the volcanoes, hot springs, and geysers on North Island.’
    • ‘For years we have seen evidence of water on Mars that includes geysers and liquid water.’
    • ‘Some of the hot springs are spouting springs or geysers, the most famous being Geysir in south Iceland.’
    • ‘Precious metals are commonly precipitated with the siliceous sinters that form around hot springs and geysers.’
    • ‘Now there are plenty of places in the world where high temperatures come very close to the surface: volcanoes, and geysers and things like this come to mind immediately.’
    • ‘In the highest resolution images, active geysers (ice volcanoes) were seen spewing columns of dark material many kilometers into the thin atmosphere.’
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    1. 1.1 A jet or stream of liquid.
      ‘the pipe sent up a geyser of sewer water into the street’
      • ‘His head was turned into atoms, and another geyser of a black liquid came from it's neck.’
      • ‘The car threw on its breaks and screeched against the pavement before ramming into a red fire hydrant, making a geyser of water spray into the air.’
      • ‘The center of the platform began to open like an iris and a geyser of flame spewed forth, engulfing its first breath of air.’
      • ‘There you are, looking 1,800 feet down, as the Atlantic Ocean slams into a sheer wall of rock, and the wind coming off the sea shoots a geyser of water straight up across the face of these rocks.’
      • ‘In a time where cars were noisy, smelly, rattling contraptions, prone to throwing tantrums and geysers of steam at the slightest pretext, this was like a chariot from heaven.’
      • ‘This second album erupts like a geyser of molten lava from your speakers.’
      • ‘At the last second a geyser of frigid water rushed up under him, swirling around and under him just strong enough to keep him from hitting the ground.’
      • ‘Poke the top with a fork, and a geyser of steam rises up.’
      • ‘A maintenance brigade is repairing the rig, a geyser of steam and water shooting up into the air as they pull sections of pipe out of the ground.’
      • ‘Suddenly, white geysers of water soared into the air.’
      • ‘Well, they're a wonder to behold… great geysers of steam and water constantly erupting from the ground in every direction.’
      • ‘Looking for all the world like a permanent feature of the museum's architectural program, his handsome project is centered by a geyser of steam piped from the Institute's heating plant.’
      • ‘A geyser of lava spouted between them and Seth attacked, charging through the lava like it was water, an unstoppable locomotive of power.’
      • ‘Over centuries, these have carved out the natural limestone arch of Devil's Bridge, creating blowholes through which geysers of spouting surf crash with spectacular results.’
      • ‘When the baking soda is hot enough, you will see little geysers of steam and carbon dioxide which are fun to watch, but which spray powder around.’
  • 2British A gas-fired water heater through which water flows as it is rapidly heated.

    • ‘People who want to have a well-equipped bathroom can look for instant geysers and water heaters, designer taps and other bathroom needs here.’
    1. 2.1South African A hot-water storage tank with an electric heating element.
      • ‘The question is, who is liable for the cost of repairs if, for example, an undetected slow leak in a geyser causes a ceiling collapse and water damage to interior paint work, carpets and furniture?’
      • ‘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.’
      • ‘The geyser, which is said to be one of the highest contributors of high electrical bills, is only switched on in the morning.’
      • ‘Because geysers are designed to keep water hot at all times, it switches the heating element on and off countless times every day.’


  • 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’
    • ‘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’.