Geothermal spring (6)
I believe the answer is:
geyser
(Other definitions for geyser that I've seen before include "Intermittent hot spring" , "It blows off steam" , "spouter!" , "one named Old Faithful" , "Spring spouting steam and hot water" .)
I believe the answer is:
geyser
(Other definitions for geyser that I've seen before include "Intermittent hot spring" , "It blows off steam" , "spouter!" , "one named Old Faithful" , "Spring spouting steam and hot water" .)