endosmosis

n. osmosis from without inward (Chemistry); flow of liquids from an area of low concentration to an area of high concentration

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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(n.)
The transmission of a fluid or gas from without inward in the phenomena, or by the process, of osmose.
  

endosmosis /,endɔz'mousis/
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ENDOSMOSI