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osmosis    音标拼音: [,ɔzm'osɪs]
n. 渗透作用,渗透性

渗透作用,渗透性

osmosis
n 1: (biology, chemistry) diffusion of molecules through a
semipermeable membrane from a place of higher concentration
to a place of lower concentration until the concentration
on both sides is equal

osmosis \os*mo"sis\ ([o^]z*m[=o]"s[i^]s), n. [NL., fr. Gr.
'wsmo`s, equiv. to 'w^sis impulse, fr. 'wqei^n to push.]
(Chemical Physics)
(a) The tendency in fluids to mix, or become equably
diffused, when in contact. It was first observed between
fluids of differing densities, and as taking place
through a membrane or an intervening porous structure. An
older term for the phenomenon was {Osmose}.

Note: The more rapid flow from the thinner to the thicker
fluid was then called {endosmosis} (formerly
{endosmose}), and the opposite, slower current,
{exosmosis} (formerly {exosmose}). Both are, however,
results of the same force. Osmosis may be regarded as a
form of molecular attraction, allied to that of
adhesion. See also {osmotic pressure}.
(b) The action produced by this tendency.
[1913 Webster]

66 Moby Thesaurus words for "osmosis":
absorbency, absorbent, absorption, adsorbent, adsorption,
assimilation, blotter, blotting, blotting paper, chemisorption,
chemosorption, communication, conduction, contagion, convection,
delivery, deportation, diapedesis, diffusion, digestion,
dissemination, endosmosis, engrossment, exosmosis, export,
exportation, expulsion, extradition, import, importation,
infiltration, interchange, metastasis, metathesis, metempsychosis,
migration, mutual transfer, passage, passing over, percolation,
perfusion, seepage, sorption, sponge, sponging, spread, spreading,
transduction, transfer, transfer of property, transference,
transfusion, transit, transition, translation, translocation,
transmigration, transmigration of souls, transmission, transmittal,
transmittance, transplacement, transplantation, transposal,
transposition, travel


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  • Osmosis: Video, Causes, and Symptoms | Osmosis
    Well, then, simply put, osmosis is how water molecules move across a semipermeable membrane that separates two solutions
  • Osmosis - Wikipedia
    Osmosis provides the primary means by which water is transported into and out of cells The turgor pressure of a cell is largely maintained by osmosis across the cell membrane between the cell interior and its relatively hypotonic environment
  • Osmosis | Definition, Examples, Facts | Britannica
    Osmosis, the spontaneous passage or diffusion of water or other solvents through a semipermeable membrane (one that blocks the passage of dissolved substances—i e , solutes)
  • Osmosis - Definition, Process, and Importance in Biology
    Osmosis is a fundamental concept in biology, chemistry, and medicine It refers to the movement of water molecules across a semipermeable membrane from a region of lower solute concentration to a region of higher solute concentration
  • Learning Made Simple for Medical Students Professionals | Osmosis
    Where medicine finally makes sense Osmosis turns even the toughest topics into clear, illustrated videos so you can learn rather than memorize
  • OSMOSIS Definition Meaning - Merriam-Webster
    The meaning of OSMOSIS is 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
  • What Is Osmosis: Definition, Diagram, Examples And Explanation
    Osmosis is the net movement of water (or, more generally, any solvent) across a semi-permeable membrane from a region of lower solute concentration to one of higher solute concentration
  • What Is Osmosis and Why Is It Important? - Biology Insights
    Osmosis is the movement of water through a selectively permeable membrane, from a region where water is more concentrated to a region where it is less concentrated
  • The physical basis of osmosis - PMC
    Osmosis is an important force in all living organisms, yet the molecular basis of osmosis is widely misunderstood as arising from diffusion of water across a membrane separating solutions of differing osmolarities, and hence different water concentrations
  • 5. 5: Osmosis - Chemistry LibreTexts
    Osmosis is the passage of water and small molecules through a semipermeable membrane with a net flow from low solute concentration to high solute concentration The larger molecules and ions cannot pass the semipermeable membrane





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