osmosis

noun

• 1 Biology & Chemistry a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.

• 2the process of gradual or unconscious assimilation of ideas, knowledge, etc.:what she knows of the blue-blood set she learned not through birthright, not even through wealth, but through osmosis