Geyser 1
Geyser 1 : (n.) A spring that discharges hot water and steam. Examples: Old Faithful: A geyser in Yellowstone National Park that erupts for about 4 minutes about every 65 minutes. Type of: Fountain, Natural Spring, Outflow, Outpouring, Spring: A natural flow of ground water. To overflow like a geyser. Type of: Brim Over, Overflow, Overrun, Run Over, Well Over: Flow or run over (a limit or brim)