My husband and I *love* to walk ...for hours and hours, and if we decide to go ahead with this potential trip - I'm going to need good shoes. These days, I have some reasonably good shoes for the most part - but they are 2-3 hour walking shoes, not necessarily good for 6+ hours of tromping around.
In cell biology, selective permeability is the property of a living cell membrane that allows the cell to control which molecules can pass through the membrane, moving into or out of the cell.
Permeable. Definition. adjective. Capable of being permeated or passed through, used especially of substances where fluids can penetrate or pass through.Supplement. For example, wood is permeable to oil. Word origin: LL permeÄbilis, equiv. to permeÄ(re) to permeate. Related forms: permeability (noun).efinition. adjective. Capable of being permeated or passed through, used especially of substances where fluids can penetrate or pass through. Supplement. For example, wood is permeable to oil. Word origin: LL permeÄbilis, equiv. to permeÄ(re) to permeate. Related forms: permeability (noun).