The distant sky of the sun, moon, and stars.
An expression of surprise, contempt, outrage, disgust, boredom, or frustration.
A stream of gaseous material emanating from an active galactic nucleus.
Any outward movement.
Something that flows out of a sewage treatment plant.
The process of flowing out.
A fluid that flows out.
The part of a system that allows material to flow out.
To flow outward.