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geyser

[gahy-zer, -ser for 1, 3; gee-zer for 2] /ˈgaɪ zər, -sər for 1, 3; ˈgi zər for 2/
noun
1.
a hot spring that intermittently sends up fountainlike jets of water and steam into the air.
2.
British Informal. a hot-water heater, as for a bath.
verb (used without object)
3.
to spew forth as or like a geyser:
the kettle geysering all over the stove.
Origin of geyser
1755-1765
1755-65; < Icelandic Geysir name of a hot spring in Iceland, literally, gusher, derivative of geysa to gush
Related forms
geyseral, geyseric, adjective
Can be confused
caldera, fumarole, geyser, volcano.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for geyser

geyser

/ˈɡiːzə; US ˈɡaɪzər/
noun
1.
a spring that discharges steam and hot water
2.
(Brit) a domestic gas water heater
Word Origin
C18: from Icelandic Geysir, from Old Norse geysa to gush
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for geyser
n.

1780, from Icelandic Geysir, name of a hot spring in the valley of Haukadal, literally "the gusher," from Old Norse geysa "to gush," from Proto-Germanic *gausjan, from PIE *gheus-, from root *gheu- "to pour" (see found (v.2)).

Online Etymology Dictionary, © 2010 Douglas Harper
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geyser in Science
geyser
  (gī'zər)   
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.
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