- The definition of a geyser is a natural hot spring that boils and lets out a large burst of water and steam from time to time.
An example of a geyser is Old Faithful in Yellowstone National Park.
A geyser in Iceland.
- a spring from which columns of boiling water and steam gush into the air at intervals
- Brit. a small hot-water heater of the coil type
Origin of geyserIcelandic Geysir, name of a certain hot spring in Iceland, literally , gusher ; from Old Norse gjosa, to gush
- A natural hot spring that intermittently ejects a column of water and steam into the air.
- Chiefly British A gas-operated hot-water heater.
Origin of geyserAfter Icelandic Geysir, name of a hot spring of southwest Iceland, from geysa, to gush, from Old Norse; see gheu- in Indo-European roots.
Water contained in porous rock seeps into an opening. Heated by magma below, it escapes under pressure to the earth's surface.
- eygres, Sergey
From the name of a particular Icelandic geyser which is mentioned as early as the 1760s in The Annual Register, as “Geyser, a wonderful spring in the valley of Haukadal”. From Geysir (“Gusher”), the Icelandic name of the hot spring in Iceland (see), from the verb geysa (“to gush”), from Old Norse geysa (“to gush”).