1. Biology. osmosis toward the inside of a cell or vessel.
  2. Physical Chemistry. the flow of a substance from an area of lesser concentration to one of greater concentration (opposed to exosmosis).


  1. biology osmosis in which water enters a cell or organism from the surrounding solutionCompare exosmosis


  1. The passage of a fluid inward through a permeable membrane, as of a cell, toward a fluid of higher concentration.

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