Definition of "geyser" []

• A natural hot spring that intermittently ejects a column of water and steam into the air. (noun)
• Chiefly British A gas-operated hot-water heater. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The Golden Circle is located in southwest Iceland and incorporates three main sights: Thingvellir National Park, a site of spectacular natural beauty where Iceland's ancient parliament convened and where the American and Eurasian tectonic plates meet; the high-temperature geothermal area that most people know as Geysir, on account of its best-known hot spring, from which the word "geyser" derives; and the beautiful Gullfoss waterfall."
• ""Geysir" (from which the English word geyser is derived), erupts every 5-10 minutes"
• "Its hissing and spitting natural geyser is located seven kilometers southeast of the former Jalisco hacienda of El Carmen."