[gahy-zer, -ser for 1, 3; gee-zer for 2]
a hot spring that intermittently sends up fountainlike jets of water and steam into the air.
British Informal. a hot-water heater, as for a bath.
verb (used without object)
to spew forth as or like a geyser: the kettle geysering all over the stove.

1755–65; < Icelandic Geysir name of a hot spring in Iceland, literally, gusher, derivative of geysa to gush

geyseral, geyseric, adjective

caldera, fumarole, geyser, volcano. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To geyser
World English Dictionary
geyser (ˈɡiːzə, US ˈɡaɪzər)
1.  a spring that discharges steam and hot water
2.  (Brit) a domestic gas water heater
[C18: from Icelandic Geysir, from Old Norse geysa to gush]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Word Origin & History

1780, from Icelandic Geysir, name of a hot spring in the valley of Haukadal, from O.N. geysa "to gush," from P.Gmc. *gausjan, from PIE *gheus-, from root *gheu- "to pour."
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Science Dictionary
geyser   (gī'zər)  Pronunciation Key 
A natural hot spring that regularly ejects a spray of steam and boiling water into the air.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Example sentences
Interactive tools allow kids to trigger a geyser eruption and dive into a hot
  spring to learn why the water boils and steams.
Earthquakes, rock slides, and steam explosions from geyser basins are all
Start with a visit to the park's mega-celebrity geyser and end with wildlife
  watching at dusk more.
It shoots a geyser of carbonated water high into the air.
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature