The Osmotic reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Osmotic

The process of diffusion by osmosis, the diffusion of molecules through a semipermeable membrane.

The force per unit area required to prevent the passage of water through a semi-permeable membrane and into a solution of greater concentration is equivalent to the osmotic pressure of the solution. Osmotic pressure is a colligative property, meaning that the property depends on the concentration of the solute but not on its identity.

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