noun
- 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.
noun
- a spring that discharges steam and hot water
- British a domestic gas water heater
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)).
- A natural hot spring that regularly ejects a spray of steam and boiling water into the air.