exosmotic


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ex·os·mo·sis

 (ĕk′sŏz-mō′sĭs, -sŏs-)
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.


ex′os·mot′ic (-mŏt′ĭk) adj.