\Os"mose\, n. [Gr. ?, equiv. to ? impulse, fr. ? to
push.] (Chemical Physics)
(a) The tendency in fluids to mix, or become equably
    diffused, when in contact. It was first observed between
    fluids of differing densities, and as taking place
    through a membrane or an intervening porous structure.
    The more rapid flow from the thinner to the thicker fluid
    was then called endosmose, and the opposite, slower
    current, exosmose. Both are, however, results of the same
    force. Osmose may be regarded as a form of molecular
    attraction, allied to that of adhesion.
(b) The action produced by this tendency.
{Electric osmose}, or {Electric endosmose} (Elec.), the
   transportation of a liquid through a porous septum by the
   action of an electric current.