noun \ˈgī-zər, British sometimes ˈgā- or ˈgē- for 1 & usually ˈgē- for 2\

: a hole in the ground that shoots out hot water and steam; also : the column of water and steam that comes from a geyser

: a device for heating water in a bathroom or kitchen

Full Definition of GEYSER

:  a spring that throws forth intermittent jets of heated water and steam
British :  an apparatus for heating water rapidly with a gas flame (as for a bath)

Examples of GEYSER

  1. The water from the geyser rises as high as 75 feet.
  2. geysers rising as high as 75 feet
  3. The water shot into the sky in an enormous geyser.

Origin of 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
First Known Use: 1780

Other Geology Terms

anthracite, boulder, cwm, erratic, igneous, intrusive, mesa, sedimentary, silt, swale

Rhymes with GEYSER


noun    (Concise Encyclopedia)

(Icelandic geysir, “to rush forth”) Any hot spring that discharges jets of steam and water intermittently, generally associated with recent volcanic activity and 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 (e.g., Old Faithful in Yellowstone National Park). Occasionally, a geyser will adopt an extremely regular and predictable pattern of intermittent activity and discharge for a few minutes every hour or so.


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