Noun
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.
Source: Webster's dictionarythe percolation of rainwater through the soil Source: Internet
the infiltration of seawater through the lava Source: Internet
A bio-infiltration garden that will gather rainwater runoff from the plaza for percolation and slow release is also expected to be built. Source: Internet
On pebble and shingle beaches the swash is dissipated more quickly because the large particle size allows greater percolation, thereby reducing the power of the backwash, and the beach remains steep. Source: Internet
Deep percolation, where water moves below the root zone, can occur if a drip system is operated for too long or if the delivery rate is too high. Source: Internet
If the engine is shut off while hot, the temperature of the fuel will increase, sometimes boiling ("percolation"). Source: Internet