percolation

The act of percolating; the act of straining or filtering; filtration; the act of passing through small interstices, as liquor through felt or a porous stone.

In pharmacy, the process of extracting the soluble parts of powdered substances by passing through them successive quantities of a solvent which yields a clear extract free from insoluble matters: used in the sense of displacement.

The act or process of percolating, or filtering; filtration; straining. Specifically (Pharm.), the process of exhausting the virtues of a powdered drug by letting a liquid filter slowly through it.

the seepage or filtration of a liquid through a porous substance

the act of making coffee in a percolator

the filtration of a liquid for extraction or purification

the slow passage of a liquid through a filtering medium