Main Entry: os·mo·sis

Pronunciation: \äz-ˈmō-səs, äs-\

Function: noun

Inflected Form(s): plural os·mo·ses \-ˌsēz\

: movement of a solvent through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane