A momentary vertical jet or fountain of fluid driven upwards by a violent force.
A boiling natural spring which throws forth jets of water, mud, etc., at frequent intervals, driven upwards by the expansive power of steam.
A domestic water boiler.
To (cause to) rush or burst upward like water from a geyser.
A fluid that flows out.
Any outward movement.
Something that flows out of a sewage treatment plant.
The process of flowing out.
A stream of gaseous material emanating from an active galactic nucleus.
The part of a system that allows material to flow out.
To flow outward.