osmosis

n. diffusion; permeation; tendency to flow through a membrane and create an equal distribution of material

Osmosis is the net movement of water across a partially permeable membrane from a region of high solvent potential to an area of low solvent potential, up a solute concentration gradient.It is a physical process in which a solvent moves, without input of energy, across a semi permeable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations. Osmosis releases energy, and can be made to do work, as when a growing tree-root splits a stone.
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Osmosis /os·mo·sis/ the diffusion of pure solvent across a membrane in response to a concentration gradient, usually from a solution of lesser to [more]Osmosis - Community and Resources

Noun
1. diffusion of molecules through a semipermeable membrane from a place of higher concentration to a place of lower concentration until the concentration on both sides is equal
(hypernym) diffusion
(part-holonym) dialysis

n. osmosis, diffusion; permeation; tendency to flow through a membrane and create an equal distribution of material

n. osmosis, tendency to flow through a membrane and create an equal distribution of material