| automatically | In an automatic manner. Source: Websters Dictionary (01 Mar 1998) |
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| regressive staining | A type of staining in which tissues are overstained and the excess dye is then removed selectively until the desired intensity is obtained. (05 Mar 2000) |
| progressive staining | A procedure in which staining is continued until the desired intensity of colouring of tissue elements is attained. (05 Mar 2000) |
| homogeneously staining region | <molecular biology> A region on a chromosome which, when stained, is uniform in appearance. (Normally, a stained chromosome shows a banding pattern.) Homogeneously staining regions contain multiple copies of a single gene. (09 Oct 1997) |
| silver staining | The use of silver, usually silver nitrate, as a reagent for producing contrast or colouration in tissue specimens. (12 Dec 1998) |
| staining | The use of a dye, reagent, or other material for producing colouration in tissues or microorganisms for microscopic examination. (12 Dec 1998) |
| negative staining | Microscopic technique in which the object stands out against a dark background of stain. For electron microscopy the sample is suspended in a solution of an electron dense stain such as sodium phosphotungstate and then sprayed onto a support grid. The stain dries as structureless solid and fills all crevices in the sample. When examined in the electron microscope the sample appears as a light object against a dark background. Quite fine structural detail can be observed using negative staining and it has been used extensively to study the structure of viruses and other particulate samples. (18 Nov 1997) |
| dispersion staining | <microscopy> A procedure involving central or annular stops in the objective back focal plane to induce coloured images of transparent particles mounted in liquids with indices matching the particle at a wavelength in the visible. The particle and liquid should possess very different dispersion curves for best colours. (05 Aug 1998) |
| optical staining | <microscopy> Producing colour in the microscopical image so as to differentiate one part of the object from another. One way is by use of Rheinberg filters. Another is to use polarized light on an anisotropic specimen. Another important method is by dispersion staining. (05 Aug 1998) |
| sports equipment | Equipment required for engaging in a sport (such as balls, bats, rackets, skis, skates, ropes, weights) and devices for the protection of athletes during their performance (such as masks, gloves, mouth pieces). (12 Dec 1998) |
| surgical equipment | Nonexpendable apparatus used during surgical procedures. They are differentiated from surgical instruments, usually hand-held and used in the immediate operative field. (12 Dec 1998) |
| diagnostic equipment | Nonexpendable items used in examinination. (12 Dec 1998) |
| disposable equipment | Apparatus, devices, or supplies intended for one-time or temporary use. (12 Dec 1998) |
| durable medical equipment | Devices which are very resistant to wear and may be used over a long period of time. They include items such as wheelchairs, hospital beds, artificial limbs, etc. (12 Dec 1998) |
| infant equipment | Equipment and furniture used by infants and babies in the home, car, and play area. (12 Dec 1998) |