| 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) |
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| 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) |
| sterile | 1. Producing little or no crop; barren; unfruitful; unproductive; not fertile; as, sterile land; a sterile desert; a sterile year. 2. <biology> Incapable of reproduction; unfitted for reproduction of offspring; not able to germinate or bear fruit; unfruitful; as, a sterile flower, which bears only stamens. Free from reproductive spores or germs; as, a sterile fluid. 3. Barren of ideas; destitute of sentiment; as, a sterile production or author. Origin: F. Sterile, L. Sterilis, akin to Gr. Stereos stiff, solid, stei^ros barren, stei^ra a cow that has not calved, Goth. Stairo, fem, barren. See Stare to gaze. Source: Websters Dictionary (01 Mar 1998) |
| sterile abscess | An abscess whose contents are not caused by pyogenic bacteria. (05 Mar 2000) |
| sterile cyst | A hydatid cyst without brood capsules or viable scoleces. (05 Mar 2000) |
| sterile insect technique | A technique used to control or eradicate insect pests or vectors, utilizing induction by irradiation of dominant lethality in the chromosomes of the released insects. (05 Mar 2000) |