The process of flowing out.
Any outward movement.
Something that flows out of a sewage treatment plant.
A fluid that flows 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.
The means by which something flows or goes out; an outlet.
The act or process of going out; (countable) an instance of this; an outgoing.
A cost, expenditure, or outlay.
A (quantity of a) substance or thing that has flowed out; an outflow.
To go out, to set forth, to set out.