The act or process of infiltrating, as of water into a porous substance, or of a fluid into the cells of an organ or part of the body.
The substance which has entered the pores or cavities of a body.
The act of secretly entering a physical location and/or organization.
process by which water on the ground surface enters the soil.
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.