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osmotic pressure

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noun Physical Chemistry.
  1. the force that a dissolved substance exerts on a semipermeable membrane, through which it cannot penetrate, when separated by it from pure solvent.

Origin of osmotic pressure

First recorded in 1885–90
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for osmotic pressure

osmotic pressure

noun
  1. the pressure necessary to prevent osmosis into a given solution when the solution is separated from the pure solvent by a semipermeable membrane
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

osmotic pressure in Medicine

osmotic pressure

n.
  1. The pressure exerted by the flow of water through a semipermeable membrane separating two solutions with different concentrations of solute.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.