The equalizing movement of fluids through a semi-permeable membrane, such as in a living cell.
Merriam-Webster Online Dictionary
osmosis (noun)1.
movement of a solvent (as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane
2.
a process of absorption or diffusion suggestive of the flow of action - osmotic , especially a usually effortless often unconscious assimilation - learned a number of languages by osmosis Roger Kimball
Dispersion, Dissemination, Spread, Distribution, Infiltration, Assimilation, Incorporation, Uptake, Penetration, Ingress, Passage, Transmission, Sieving, Straining, Sifting, Transfer, Conveyance, Movement, Shift