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n. The passage of a fluid through a semipermeable membrane toward a solution of lower concentration, especially the passage of water through a cell membrane into the surrounding medium.

n. osmosis in which fluid flows through a membrane towards a region of lower concentration

n. See exosmose.

n. The passage of gases, vapors, or liquids through membranes or porous media from within outward, in the phenomena of osmosis, the reverse process being called endosmosis. See endosmosis, osmosis.

"He finds that the vessels of the body, without undergoing extensive structural alteration, can by exosmosis rid themselves of fluid to an amount of eight per cent. of the body weight of the subject of the experiment."

endosmosis   

exosmose