Wiktionary
outgushing
n. That which gushes outward. vb. (present participle of outgush English)
Usage examples of "outgushing".
The problem was how to open the misaligned interlock without turning a slow leak into an outgushing of what air was left.
As the outer air-lock hatch closed, he irised the tunnel-tube shut, released its seal with an outgushing of air, and unclamped the tube.
He did not let go until Aksar ran into one of the horizontal poles and doubled almost all the way over it with a great outgushing of breath.