Word Origin See more synonyms for dialysis on Thesaurus.com noun, plural di·al·y·ses . [dahy- al- uh-seez] /daɪˈæl əˌsiz/ . Physical Chemistry the separation of crystalloids from colloids in a solution by diffusion through a membrane. . Biochemistry the separation of large molecules, as proteins, from small molecules and ions in a solution by allowing the latter to pass through a semipermeable membrane. . Medicine/Medical (in kidney disease) the process by which uric acid and urea are removed from circulating blood by means of a dialyzer. Origin of dialysis 1580–90;
a separation. See
-lysis verb (used with object), di·a·lyzed, di·a·lyz·ing. to subject to dialysis; separate or procure by dialysis. verb (used without object), di·a·lyzed, di·a·lyz·ing. to undergo dialysis.
, especially British di·a·lyse. Related forms di·a·lyz·a·ble, adjective di·a·lyz·a·bil·i·ty, noun di·a·ly·za·tion, noun non·di·a·lyz·ing, adjective un·di·a·lyzed, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for dialyses noun plural -ses ( -ˌsiːz) the separation of small molecules from large molecules and colloids in a solution by the selective diffusion of the small molecules through a semipermeable membrane med See haemodialysis, peritoneal dialysis Derived Forms dialytic ( ˌdaɪəˈlɪtɪk), adjective dialytically, adverb Word Origin
C16: from Late Latin: a separation, from Greek
dialusis a dissolution, from dialuein to tear apart, dissolve, from luein to loosen
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for dialyses dialysis n.
1580s, from Latin, from Greek
dialysis "dissolution, separation" (of the disbanding of troops, a divorce, etc.), from dialyein "dissolve, separate," from dia- "apart" + lyein "loosen" (see lose). Used originally in logic and grammar; chemistry sense is first recorded 1861, medicine 1914. Related: Dialytic.
Online Etymology Dictionary, © 2010 Douglas Harper
dialysis (dī-ăl ′ĭ-sĭs) n. pl. di•al•y•ses ( -sēz′) The separation of smaller molecules from larger molecules or of dissolved substances from colloidal particles in a solution by selective diffusion through a semipermeable membrane. diffusion Hemodialysis. Related forms di′a•lyt ( ′ic -ə-lĭt) ′ĭk adj. dialyze (dī ′ə-līz′) To subject to or undergo dialysis or hemodialysis. Related forms di′a•lyz′a•bil ′i•ty n. di ′a•lyz′a•ble adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
The separation of the smaller molecules in a solution from the larger molecules by passing the solution through a membrane that does not allow the large molecules to pass through. A medical procedure in which this technique of molecular separation is used to remove metabolic waste products or toxic substances from the blood. Dialysis is required for individuals with severe kidney failure.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
dialysis [(deye- al-uh-sis)]
The separation of large
molecules from small molecules by passage through a membrane. Note
A common treatment for
disease is the use of a dialysis machine to filter toxic substances from the blood, a function that the kidneys normally perform.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.