Pronunciation: (gī'zur, -sur for 1, 3; gē'zur for 2), [key]
1. a hot spring that intermittently sends up fountainlike jets of water and steam into the air.
2. Brit. Informal.a hot-water heater, as for a bath.
to spew forth as or like a geyser: the kettle geysering all over the stove.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.