Meaning of exosmosis

ex•os•mo•sis

Pronunciation: (ek"sos-mō'sis, ek"soz-), [key]
— n.
  1. osmosis toward the outside of a cell or vessel.
  2. the flow of a substance from an area of greater concentration to one of lower concentration (opposed to endosmosis).
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.