di·al·y·sis (d - l  -ss)n. pl. di·al·y·ses (-s  z ) 1. 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. 2. Hemodialysis. [Greek dialusis, separating, dissolution, from dial  ein, to break up, dissolve : dia-, apart; see dia- + lein, to loosen; see leu- in Indo-European roots.]di a·lytic (- -ltk) adj.di a·lyti·cal·ly adv. |
dialysis [daɪˈælɪsɪs]
n pl -ses [-ˌsiːz]
1. (Chemistry) 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
2. (Medicine) Med See haemodialysis, peritoneal dialysis
[from Late Latin: a separation, from Greek dialusis a dissolution, from dialuein to tear apart, dissolve, from luein to loosen]
dialytic [ˌdaɪəˈlɪtɪk] adj
dialytically adv
| dialysis (d-l-ss) 1. 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. 2. 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. |
dialysis
the process whereby colloids and crystalloids separate in solution by diffusion through a membrane. — dialytic, adj.
See also: Biology
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | dialysis - separation of substances in solution by means of their unequal diffusion through semipermeable membranes chemical analysis, qualitative analysis - the act of decomposing a substance into its constituent elements pheresis, apheresis - a procedure in which blood is drawn and separated into its components by dialysis; some are retained and the rest are returned to the donor by transfusion haemodialysis, hemodialysis - dialysis of the blood to remove toxic substances or metabolic wastes from the bloodstream; used in the case of kidney failure osmosis - (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 |
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