The pressure required to prevent the passage of solvent through a semipermeable membrane that separates a pure solvent from a solution of the solvent and solute or that separates different concentrations of a solution. It is proportional to the osmolality of the solution.
See also reference (FX) in Slovak
osmoregulácia rovnováha vodná a elektrolytová poruchy vodnej a elektrolytovej rovnováhy