GEYSER is validvalid

to eject jets of hot water and steam [v GEYSERED, GEYSERING, GEYSERS]

20,748 of 196,601 in NWL2023·also valid in CSW24

(Icelandic) a type of thermal spring which ejects water intermittently with considerable force [n -S] / to eject jets of water and steam [v -ED, -ING, -S]