osmosis

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noun os·mo·sis \äz-ˈmō-səs, äs-\

Definition of osmosis

  1. 1 :  movement of a solvent (such as water) through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane

  2. 2 :  a process of absorption or diffusion (see diffusion 3a) suggestive of the flow of osmotic action; especially :  a usually effortless often unconscious assimilation (see assimilation 4) learned a number of languages by osmosis — Roger Kimball

Examples of osmosis in a Sentence

  1. She seems to learn foreign languages by osmosis.

Origin and Etymology of osmosis

New Latin, short for endosmosis


First Known Use: 1863

Other Chemical Engineering Terms


OSMOSIS Defined for English Language Learners

osmosis

play
noun os·mo·sis \äz-ˈmō-səs, äs-\

Definition of osmosis for English Language Learners

  • biology : the process that causes a liquid (especially water) to pass through the wall of a living cell

  • : an ability to learn and understand things gradually without much effort


OSMOSIS Defined for Kids

osmosis

play
noun os·mo·sis \äs-ˈmō-səs, äz-\

Definition of osmosis for Students

  1. :  a passing of material and especially water through a membrane (as of a living cell) that will not allow all kinds of molecules to pass


Medical Dictionary

osmosis

play play
noun os·mo·sis \äz-ˈmō-səs, äs-\

Medical Definition of osmosis

plural

osmoses

\-ˌsēz\play
  1. :  movement of a solvent through a semipermeable membrane (as of a living cell) into a solution of higher solute concentration that tends to equalize the concentrations of solute on the two sides of the membrane



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