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]

The Collaborative International Dictionary of English. 2000.

См. также в других словарях:

  • endosmosis — endósmosis o endosmosis →  ósmosis u osmosis …   Diccionario panhispánico de dudas

  • endósmosis — o endosmosis →  ósmosis u osmosis …   Diccionario panhispánico de dudas

  • endósmosis — (De endo y ósmosis). f. Fís. Difusión de disolvente hacia el interior de un compartimento u órgano …   Diccionario de la lengua española

  • endosmosis — [en΄däs mō′sis] n. [altered (after OSMOSIS) < Fr endosmose < endo , ENDO + Gr ōsmos: see OSMOSIS] in osmosis, the more rapid, inward diffusion of the less dense fluid through the semipermeable membrane to mingle with the more dense: opposed …   English World dictionary

  • endósmosis — ► sustantivo femenino BIOLOGÍA Penetración de agua en la célula causada porque la concentración molecular de su interior es más alta que la del medio que la rodea. TAMBIÉN endosmosis IRREG. plural endósmosis * * * endósmosis o, menos frec.,… …   Enciclopedia Universal

  • Endosmosis — Endosmose En dos*mose , Endosmosis En dos*mo sis, n. [NL. endosmosis, fr. Gr. e ndon within + ? a thrusting, impulsion, fr. ? to push: cf. F. endosmose.] (Physics) The transmission of a fluid or gas from without inward in the phenomena, or by the …   The Collaborative International Dictionary of English

  • endosmosis — n. [Gr. endon, within; osmos, a pushing] Osmotic diffusion toward the inside …   Dictionary of invertebrate zoology

  • endosmosis — Movement of water into a cell as a result of greater internal osmotic pressure. The water potential within the vascular sap of a plant cell must be lower than that in the bathing medium or sap of a neighbouring cell …   Dictionary of molecular biology

  • endosmosis — endosmotic /en doz mot ik, dos /, adj. endosmotically, adv. /en doz moh sis, dos /, n. 1. Biol. osmosis toward the inside of a cell or vessel. 2. Physical Chem. the flow of a substance from an area of lesser concentration to one of greater… …   Universalium

  • endosmosis — noun osmosis in which fluid flows through a membrane towards a region of higher concentration …   Wiktionary

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