geyser
noun
[ ˈɡiːzə ]
• a hot spring in which water intermittently boils, sending a tall column of water and steam into the air.
• a gas-fired water heater through which water flows as it is rapidly heated.
geyser
verb
• (especially of water or steam) gush or burst out with great force.
• "a fissure opened and yellow smoke geysered upward"
Origin:
late 18th century: from Icelandic Geysir, the name of a particular spring in Iceland; related to geysa ‘to gush’.