Physics and Phys. [mod.L. (quasi-Gr.), f. Gr. ἔνδο-ν (see ENDO-) + ὠσμός pushing, thrusting. = ENDOSMOSE. (The two forms appear to be equally frequent in use; endosmosis is more in accordance with Eng. analogies.)] The passage of a fluid ‘inwards’ through a porous septum, to mix with another fluid on the inside of it.

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1836–9.  Todd, Cycl. Anat., II. 99. All alkalies and soluble salts produce endosmosis.

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1844–57.  G. Bird, Urin. Deposits (ed. 5), 428. The well-known phenomena described by Dutrochet, under the terms of endosmosis and exosmosis.

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1880.  J. W. Legg, Bile, 55. The appearance of sugar in the bile is due to endosmosis from the liver itself.

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