Definition of "geyser" in Anglais

noun

1. (planetology, geology, volcanology) A boiling natural spring which throws forth jets of water, mud, etc., at frequent intervals, driven upwards by the expansive power of steam.

2. (by extension) A momentary vertical jet or fountain of fluid driven upwards by a violent force.

3. (British, archaic) An instantaneous, and often dangerous, hot water heater.

4. (South Africa, South Asia) A domestic water boiler.

verb

1. (ambitransitive) To (cause to) rush or burst upward like water from a geyser.