infiltration
The spy conducted an infiltration mission to gain access to classified information.
Penetration.
Infiltration
I believe the word you are looking for is infiltration.
Porosity affects infiltration because it determines the speed of the infiltration whether it will be fast or not
You may mean 'infiltration' , which means to enter gradually and imperceptibly by stealthy methods.
Infiltration capacity or amount of infiltration depends on : - Soil type - Surface of entry - Fluid characteristics.
the process of water into ground is called infiltration.
Infiltration occurs by an aquifer filtering a liquid
Tissue infiltration is insertion of fluid into tissue. For example injecting local anesthesia for a laceration repair is tissue infiltration.
Infiltration, Infiltration, Percolation