/ Dictionary / Index G geyser: Meaning and Definition of Find definitions for: gey•ser Pronunciation: (gī'zur, -sur for 1, 3 gē'zur for 2), [key] — n. a hot spring that intermittently sends up fountainlike jets of water and steam into the air. a hot-water heater, as for a bath. —v.i. 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. See also: geyser (Thesaurus) gey geyser basin Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language