| iso- | 1. <prefix> A prefix that means equal or like. 2. <chemistry> A prefix indicating isomer of (isomerism); e.g., isocyanate vs. cyanate. 3. <immunology> A prefix designating sameness with respect to species; in recent years, the meaning has shifted to sameness with respect to genetic constitution of individuals. Origin: G. Isos, equal (20 Jun 2000) |
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| iso-osmotic | <physiology> Having the same total osmotic pressure or osmolality as another fluid (ordinarily intracellular fluid); such a fluid is not isosmotic if it includes solutes that freely permeate cell membranes. Synonym: iso-osmotic. (05 Mar 2000) |
| gold sol test | An obsolete, non-specific test for altered proteins in spinal fluid. As originally used by Lange in 1912, the test was thought to be specific for neurosyphilis; however, this proved to be incorrect. Dilutions of spinal fluid are made in saline and to these a colloidal gold solution is added; if altered proteins are present, there is a colour change or precipitate formed. at present, its chief use is to demonstrate cerebrospinal fluid protein abnormalities in multiple sclerosis. Synonym: gold sol test, Zsigmondy's test. (05 Mar 2000) |
| sol | 1. The sun. 2. <chemistry> Gold; so called from its brilliancy, colour, and value. Origin: L. Source: Websters Dictionary (01 Mar 1998) |
| sol gel transformation | Transition between more fluid cytoplasm (endoplasm) and stiffer gel like ectoplasm proposed as a mechanism for amoeboid locomotion: since the endoplasm cannot really be considered a simple fluid and has visco elastic properties like a gel, the term is misleading. (18 Nov 1997) |
| saline | Salty, of the nature of a salt, containing a salt or salts. Origin: L. Salinus, sal = salt (18 Nov 1997) |
| saline agglutinin | An antibody which causes agglutination of erythrocytes when they are suspended either in saline or in a protein medium. (05 Mar 2000) |
| saline conditions | Soils or waters that are high in salt content, that is, more than 0.5 parts per thousand (=0.05% salinity). Usually sodium chloride (NaCl) is the predominant salt, but some areas have high concentrations of sulphates, carbonates, and bicarbonates, as well. Habitats are commonly subdivided on the basis of total salt content. (09 Oct 1997) |
| saline solution | A solution of any salt. Synonym: salt solution. Specifically, an isotonic sodium chloride solution.; 0.85 to 0.9/100 ml water. (05 Mar 2000) |
| saline solution, hypertonic | Hypertonic sodium chloride solution. A solution having an osmotic pressure greater than that of physiologic salt solution (0.9 g nacl in 100 ml purified water). (12 Dec 1998) |
| saline water | A water that contains neutral salts (chlorides, bromides, iodides, sulfates) in appreciable amounts. (05 Mar 2000) |
| formol-saline fixative | A general fixative for histologic and histochemical preparations. (05 Mar 2000) |