I just hear the term "non-propulsive vent".

I was told to look it up, but I have a better way! It's called Stack Exchange.

Is it a thing, a vent that does not cause propulsion?

Or is it an event, where a vent of some unwanted gas has occurred which did not result in a propulsive maneuver?

Does it refer to resulting in zero torque (zero rotation change) or zero thrust (zero acceleration) or either one, or both?

I just hear the term "non-propulsive vent". Is it a thing, a vent that does not cause propulsion?

Or is it an event, where a vent of some unwanted gas has occurred which did not result in a propulsive maneuver?

Does it refer to resulting in zero torque (zero rotation change) or zero thrust (zero acceleration) or either one, or both?